10 Forgotten Cities That Once Ruled the Ancient World

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By Riajul Islam Jidan

Ever wonder what happened to the world’s greatest cities? Not New York or London. I mean the REAL ancient powerhouses. The cities that made modern capitals look like suburban strip malls.

Here’s the thing: most of us learn about Rome and Athens in school. But nobody tells you about the lost cities that were just as powerful, just as magnificent, and way more mysterious. These forgotten ancient cities controlled massive empires, dominated global trade, and then… vanished.

Some sank beneath the sea. Others were buried by sand. A few just got forgotten because people moved on. But they all have one thing in common: they were once the center of the universe, and now most people have never heard of them.

If you’re tired of the same old history lessons about Rome and Egypt, stick around. You’re about to discover cities that ruled the world before mysteriously disappearing. Think Indiana Jones meets National Geographic, minus the Nazis and with way more actual facts.

Ready? Let’s dig in.

Why Do Great Cities Get Forgotten?

Before we jump into the list, let’s answer the big question: how does a massive, powerful city just disappear from human memory?

It’s not as weird as it sounds. Cities die for lots of reasons:

  • Natural disasters wipe them out (earthquakes, tsunamis, volcanic eruptions)
  • Climate change makes them unlivable (droughts, floods, shifting rivers)
  • Economic shifts kill their relevance (new trade routes, new technologies)
  • War and conquest destroy them completely
  • Time just covers them up with sand, mud, or jungle

The craziest part? Some of these cities were forgotten for over a thousand years. People thought they were myths. Then some archaeologist with a shovel proved everyone wrong.

01

Petra: The Pink City Hidden in Rock

Location: Jordan

Founded: Around 312 BC

Ruled by: The Nabataeans

Population at Peak: 20,000 to 30,000 people

Forgotten: After 7th century CE

Rediscovered: 1812 by Swiss explorer Johann Ludwig Burckhardt

The Story

Picture this: you’re a nomadic Arab trader around 300 BC. You herd camels across brutal deserts. You know secret water sources that nobody else knows. And you’re getting rich transporting frankincense, myrrh, and spices from Arabia to the Mediterranean.

That’s how the Nabataeans started. But these desert nomads had bigger plans. They chose a location in southern Jordan surrounded by towering rose-colored cliffs. Then they did something insane: they carved an entire city directly into the rock.

We’re not talking about a few caves. We’re talking about massive temples, elaborate tombs, and sophisticated water systems all carved into pink sandstone. The most famous structure, Al-Khazneh (The Treasury), stands over 40 meters tall with intricate Hellenistic columns carved straight into the cliff face.

Petra wasn’t just beautiful. It was strategically brilliant. The city sat at the crossroads of major trade routes connecting China, India, and Arabia to the Mediterranean world. Every caravan had to pass through Petra. The Nabataeans charged tolls, provided shelter, and sold water at premium prices.

At its peak under King Aretas IV (9 BC to 40 AD), Petra was a cosmopolitan trading center. Merchants from all over the ancient world gathered there. The city had:

  • Advanced water management systems with underground cisterns
  • A sophisticated irrigation network that turned desert into gardens
  • Public pools and fountains (in the desert!)
  • A population of at least 25,000 people
  • Control over trade routes stretching from Yemen to Gaza

The Nabataeans’ secret weapon? Water engineering. They built dams, levees, and aqueducts that collected rainwater and transported it from springs miles away. In one of Earth’s harshest environments, they created a garden paradise.

Three things killed Petra:

First, the Romans annexed the Nabataean kingdom in 106 AD. They built new roads and shifted trade routes north to cities like Palmyra.

Second, maritime trade routes became more popular. Ships could move goods faster and cheaper than camel caravans. Petra’s location mattered less.

Third, an earthquake in 363 AD destroyed critical infrastructure, including the water management system. Without water, the city couldn’t support its population.

By the 7th century CE, Petra was abandoned except for a handful of nomads living in caves. The outside world forgot it existed for over a thousand years.

In 1812, Swiss explorer Johann Ludwig Burckhardt heard rumors about ancient ruins in the Jordanian desert. He disguised himself as an Arab sheikh and convinced local guides to take him there. When he emerged from the narrow canyon called the Siq and saw The Treasury, he knew he’d found something extraordinary.

Today, over a million tourists visit Petra annually. It’s one of the New Seven Wonders of the World. But for over a millennium, this forgotten ancient city was completely lost to history.

Fun Fact: You’ve probably seen Petra without knowing it. The Treasury appeared in Indiana Jones and the Last Crusade as the entrance to the Holy Grail’s hiding place.

02

Mohenjo-Daro: The Mysterious Indus Valley Giant

Location: Sindh Province, Pakistan

Founded: Around 2600 BC

Civilization: Indus Valley Civilization

Population at Peak: Around 40,000 people

Abandoned: Around 1900 BC

Rediscovered: 1922 by R.D. Banerji

The Story

Mohenjo-Daro translates to “Mound of the Dead.” Not a cheerful name, right? But this city was anything but dead during its heyday. It was one of the most advanced urban centers of the ancient world, built over 4,500 years ago.

Here’s what blows my mind: while ancient Egyptians were building pyramids and Mesopotamians were developing cuneiform writing, the people of Mohenjo-Daro were building a city with grid-pattern streets, advanced drainage systems, and multi-story buildings. This wasn’t some primitive settlement. This was urban planning at its finest.

Mohenjo-Daro was one of two major cities of the Indus Valley Civilization (the other was Harappa). At its peak, it was home to around 40,000 people, making it one of the largest cities in the ancient world.

What made Mohenjo-Daro special:

Advanced Urban Planning: The city was laid out in a perfect grid pattern with main streets running north-south and east-west. Side streets branched off at right angles. This level of planning wouldn’t be seen again for thousands of years.

Sophisticated Drainage: Every house had a bathroom connected to a city-wide drainage system. Covered drains ran under every street. This is stuff that many medieval European cities didn’t have!

The Great Bath: The city featured a large public bath made of waterproofed brick, measuring 12 meters long, 7 meters wide, and 2.4 meters deep. Archaeologists believe it was used for ritual bathing.

Peaceful Society: Unlike other ancient cities, Mohenjo-Daro had no obvious fortifications, palaces, or weapons. There’s no evidence of a military or ruling class. This suggests a remarkably egalitarian and peaceful society.

Mystery Writing: The Indus script remains undeciphered. We’ve found thousands of seals and inscriptions, but nobody can read them. We still don’t know what language they spoke or what their writing says.

Here’s where it gets mysterious. Nobody knows for sure why Mohenjo-Daro was abandoned around 1900 BC. Theories include:

  • Climate change that caused droughts and made the Indus River shift its course
  • Flooding that repeatedly damaged the city
  • Invasion by unknown groups (though there’s no evidence of warfare)
  • Economic collapse when trade routes shifted
  • Epidemic disease that devastated the population

What we do know is that people left gradually. The city wasn’t destroyed violently. They just… left.

For over 3,800 years, Mohenjo-Daro lay buried under layers of silt and sand. Local legends spoke of ancient ruins, but nobody investigated. Then in 1922, Indian archaeologist R.D. Banerji discovered the site while looking for Buddhist artifacts.

What he found shocked the archaeological world. An entire lost civilization emerged, complete with advanced technology that predated anything expected in that region.

Current Status: Mohenjo-Daro is a UNESCO World Heritage Site. Unfortunately, the ancient bricks are deteriorating due to salt deposits rising from groundwater. Climate change poses a constant threat to these 4,500-year-old structures.

03

Heracleion (Thonis): Egypt’s Sunken Wonder

Location: Aboukir Bay, Egypt (now underwater)

Founded: Around 8th century BC

Culture: Egyptian and Greek

Sank: Around 8th century CE

Rediscovered: 2000 by Franck Goddio

The Story

For over a thousand years, Heracleion was considered a myth. Ancient Greek historians mentioned a great Egyptian port city where the Nile met the Mediterranean Sea. They said it was enormous, wealthy, and culturally significant. But nobody could find it.

Why? Because it was underwater.

In the year 2000, French underwater archaeologist Franck Goddio was searching for French warships when his team’s sonar detected something unexpected. Massive structures lay beneath the seabed of Aboukir Bay, about 6.5 kilometers off Egypt’s coast.

What they found was mind-blowing.

Heracleion (known as Thonis to Egyptians) wasn’t just any port city. It was THE gateway between Egypt and the Mediterranean world during the Late Period (664-332 BC).

Here’s what made it special:

Strategic Location: Before Alexandria was founded in 331 BC, Heracleion was Egypt’s largest Mediterranean port. All trade between Greece and Egypt flowed through this city.

Religious Significance: The city housed the grand Temple of Amun-Gereb, where pharaohs performed sacred coronation rituals. This wasn’t optional—it was required for legitimacy.

Cultural Melting Pot: Egyptian and Greek merchants, artisans, and religious practitioners lived side by side. The city featured both Egyptian temples and Greek sanctuaries, including one dedicated to Aphrodite.

Massive Scale: Archaeologists have recovered:

  • 64 ancient ships
  • 700 anchors
  • A 4.9-meter (16-foot) tall statue of the god Hapi
  • Hundreds of smaller statues of gods and goddesses
  • Stone slabs inscribed in both Greek and Ancient Egyptian (like mini-Rosetta Stones)
  • Gold coins and bronze weights
  • Dozens of sarcophagi

Heracleion didn’t fall to invaders or economic decline. It literally sank beneath the waves.

The city was built on unstable ground in the Nile Delta. Over centuries, several factors combined to doom it:

Soil liquefaction: The weight of massive stone buildings caused the ground to collapse Earthquakes: Seismic activity in the Mediterranean triggered tsunamis and ground shifts Rising sea levels: Gradual water level increases submerged lower areas Nile flooding: The river deposited sediment that increased weight on the unstable foundation

Between the 6th and 8th centuries CE, Heracleion gradually sank beneath the Mediterranean. Within a few generations, people forgot exactly where it had been.

When Goddio’s team discovered Heracleion in 2000, they found it astonishingly well-preserved. The underwater environment protected artifacts from oxygen and bacteria that would have destroyed them on land.

The team has been carefully excavating the site for over two decades. They estimate they’ve explored only about 5% of the ancient city. Countless treasures still lie buried in the seabed.

Mind-Blowing Detail: The temple ruins, statues, and even some wooden ship components survived underwater for 1,200+ years. It’s one of the most important underwater archaeological discoveries in history.

04

Caral: America’s Oldest City

Location: Supe Valley, Peru

Founded: Around 2600 BC

Civilization: Norte Chico (Caral-Supe)

Population at Peak: Around 3,000 people

Abandoned: Around 2000 BC

Rediscovered: 1905, but properly excavated starting in 1990s

The Story

Pop quiz: What’s the oldest city in the Americas?

If you said “some Mayan city” or “Teotihuacan,” you’re wrong by about 2,000 years.

Caral was built around 2600 BC—roughly the same time Egyptians were building the pyramids at Giza. It predates the Olmecs (often called Mesoamerica’s “mother culture”) by 2,000 years. It’s older than the earliest Mayan cities by about 2,500 years.

Let that sink in. While Europeans were still in the Stone Age, Peruvians had built a sophisticated city with monumental architecture.

Caral was the center of the Norte Chico civilization, one of the world’s six independent cradles of civilization (along with Mesopotamia, Egypt, China, India, and Mesoamerica).

Here’s what archaeologists found:

Six Major Pyramids: Not Egyptian-style pointy pyramids, but massive platform mounds arranged around a huge plaza. These structures required millions of stones and coordinated labor from thousands of people.

Public Architecture: Stairs, rooms, courtyards, an amphitheater, and three sunken circular plazas designed for public gatherings and ceremonies.

Advanced Society: The city had specialized workers including craftsmen, farmers, fishermen, and administrators. This wasn’t a simple farming village—it was a complex urban center.

Long-Distance Trade: Caral’s residents traded with coastal communities and Amazonian settlements, acquiring products from diverse ecological zones.

No Evidence of Warfare: Like Mohenjo-Daro, Caral shows no signs of fortifications, weapons, or violent conflict. These people apparently built a civilization without war.

Musical Instruments: Archaeologists found 32 flutes made from pelican and condor bones. Music was clearly important to their culture.

Around 2000 BC, Caral was abandoned. The most likely culprit? Climate change.

Evidence suggests a major drought hit the region, making agriculture difficult. The nearby Supe River may have dried up or shifted course. Without reliable water and food, the population couldn’t sustain the city.

Interestingly, the people didn’t die out—they moved. The civilization continued in other locations along the Peruvian coast.

German archaeologist Max Uhle surveyed the Supe Valley in 1905 and noted the hills and mounds. But at the time, archaeologists thought these were natural formations. The site was largely ignored for nearly a century.

In 1975, archaeologists realized the “hills” were actually stepped pyramids. But the big breakthrough came in the 1990s when Peruvian archaeologist Ruth Shady Solís led major excavations. Using radiocarbon dating, she proved the site was 4,600 years old.

This was shocking. It completely rewrote our understanding of New World civilizations.

Current Status: Caral is a UNESCO World Heritage Site. Excavations continue, and archaeologists believe they’ve explored less than 10% of the ancient city.

05

Angkor: The Jungle-Swallowed Megacity

Location: Cambodia

Founded: Around 9th century CE

Civilization: Khmer Empire

Population at Peak: Up to 750,000 people (one of the largest pre-industrial cities)

Abandoned: 15th century

Rediscovered (by Westerners): 1860s

The Story

Okay, so Angkor Wat (the famous temple) was never truly “lost.” Buddhist monks used it continuously. Local Cambodians always knew it was there. But the massive city surrounding it? That got swallowed by jungle and forgotten by the outside world.

At its peak between 1000-1200 CE, Angkor was one of the largest urban centers in the pre-industrial world. The city covered over 1,000 square kilometers—larger than modern-day Los Angeles!

The Khmer Empire built Angkor as their capital, and they went absolutely massive with it.

Population: At its peak, Angkor housed 750,000 to 1 million people. For comparison, London had only about 50,000 people at the same time.

Water Management: The city featured a sophisticated hydraulic system with massive reservoirs (called barays), canals, and moats. This system irrigated rice fields, supported the population, and demonstrated the empire’s engineering prowess.

Temples Everywhere: Angkor contains over 1,000 temples ranging from small shrines to massive complexes. Angkor Wat itself is the largest religious monument in the world.

Architecture: The Khmer builders created intricate stone carvings, towering pyramid temples, and elaborate bas-reliefs depicting Hindu and Buddhist mythology.

Economic Power: The empire controlled major trade routes and agricultural resources. They dominated mainland Southeast Asia for centuries.

Angkor wasn’t destroyed by invaders (though there were conflicts). It died from a perfect storm of problems:

Environmental Crisis: The sophisticated water management system was both Angkor’s strength and its weakness. A series of massive monsoons in the 14th-15th centuries overwhelmed the hydraulic infrastructure. Canals broke, reservoirs failed, and the system collapsed.

Deforestation: Centuries of farming and construction stripped the surrounding forests. This caused erosion and made water management even harder.

Economic Shifts: Maritime trade became more important than land-based trade. Coastal cities gained power while inland Angkor declined.

Political Changes: Buddhism replaced Hinduism as the state religion, changing cultural priorities. The capital eventually moved to Phnom Penh, closer to trade routes.

By the late 15th century, Angkor was largely abandoned. Jungle reclaimed the city. Within a few generations, massive temples were completely hidden under vegetation.

Local people never forgot Angkor Wat—the temple remained an active Buddhist site. But the extent of the ancient city was unknown until French explorer Henri Mouhot visited in 1860 and published his reports.

Western fascination exploded. Over the next 150 years, archaeologists cleared jungle and mapped the ruins. But the real game-changer came in 2012 when archaeologists used LIDAR (laser scanning from aircraft) to map the city through the jungle canopy.

The results shocked everyone. Angkor was far larger than imagined. The scans revealed neighborhoods, roads, canals, and temples that nobody knew existed.

Recent Discovery: In 2015, archaeologists found a hidden pool beneath the jungle floor at Angkor. New discoveries are still emerging from this forgotten ancient city.

06

Derinkuyu: The Underground City

Location: Cappadocia, Turkey

Founded: Around 8th-7th century BC (possibly earlier)

Built by: Possibly the Hittites, expanded by Byzantine Greeks

Population Capacity: Up to 20,000 people

Abandoned: 1923

Rediscovered: 1963

The Story

In 1963, a Turkish man in Cappadocia kept losing chickens. They kept disappearing into a hole in his basement wall. Annoyed, he decided to investigate.

He knocked down the wall, found a dark room, and then a tunnel. And another tunnel. And another. The tunnels kept going down. And down. And down.

He’d discovered an entire underground city, hidden beneath his house.

Derinkuyu isn’t your average cave system. This is a multi-level underground city that goes 18 stories deep (approximately 60 meters underground).

Massive Scale: The city could shelter up to 20,000 people, along with their livestock, food stores, and supplies.

Complete Infrastructure: Archaeologists found:

  • Living quarters for families
  • Food storage rooms
  • Wine and oil presses
  • Stables for livestock
  • Churches and religious spaces
  • Schools
  • Meeting halls
  • Wells for fresh water
  • Ventilation shafts (52 of them, some over 50 meters deep)

Defense Systems: Giant rolling stone doors (weighing hundreds of kilograms) could be moved from inside to seal off sections. Once closed, they were nearly impossible to open from the outside.

Ventilation Engineering: The ventilation shafts were ingeniously designed. Even at the lowest levels, air remained breathable. This required sophisticated understanding of airflow.

Derinkuyu was originally built around 1200 BC, possibly by the Hittites. But it reached its peak during the Byzantine period (8th-14th centuries CE) when Greek-speaking Christians used it to hide from Arab and Mongol raids.

During attacks, entire communities would retreat underground, seal the entrances, and wait out the danger. They could survive down there for weeks or even months.

The city was actively used until 1923, when the last Greeks were expelled from Turkey following the Greco-Turkish War. Within 40 years, people forgot it existed.

The 1963 discovery by the chicken-losing farmer led archaeologists to explore the site. They found that Derinkuyu connected via tunnels to other underground cities in Cappadocia. The entire region is honeycombed with subterranean complexes.

Mind-Blowing Fact: Only about 10% of Derinkuyu has been excavated and is open to tourists. The rest remains sealed, either for safety reasons or because archaeologists haven’t explored it yet.

07

Akrotiri: The Minoan Pompeii

Location: Santorini (Thera), Greece

Founded: Around 5000 BC (settlement); major city by 2000 BC

Civilization: Minoan (Bronze Age)

Destroyed: Around 1600 BC

Rediscovered: 1967

The Story

Everyone knows Pompeii—the Roman city buried by Mount Vesuvius in 79 AD. But 1,700 years before Pompeii, something far more catastrophic happened on the Greek island of Santorini.

Around 1600 BC, the volcano at the center of the island erupted with the force of several thousand atomic bombs. The explosion was one of the largest in human history. It destroyed the entire center of the island, triggered massive tsunamis, and caused catastrophic weather events across the Mediterranean.

The Minoan city of Akrotiri was buried under meters of volcanic ash.

Akrotiri was a major Bronze Age settlement of the Minoan civilization, the sophisticated culture that also built the palace at Knossos on Crete.

Advanced Society: The city had:

  • Multi-story buildings (some were three stories tall)
  • Complex drainage systems
  • Sophisticated street layouts
  • Indoor toilets (seriously!)

Art and Culture: The volcanic ash preserved incredible frescoes (wall paintings) showing:

  • Ships and naval scenes
  • Religious ceremonies
  • Daily life activities
  • Exotic animals and plants
  • Fashion and hairstyles from 3,600 years ago

Trade Network: Pottery and artifacts from across the Mediterranean world show that Akrotiri was a major trading hub.

No Bodies: Here’s something strange—archaeologists have found almost no human remains at Akrotiri. This suggests the residents had warning and evacuated before the catastrophic eruption.

The Theran eruption was one of the most powerful volcanic events in recorded human history. It:

  • Destroyed the center of Santorini island
  • Buried Akrotiri under 6 meters of volcanic ash
  • Triggered tsunamis that hit Crete and coastal settlements across the Eastern Mediterranean
  • Likely contributed to the decline of Minoan civilization
  • Possibly inspired the Atlantis legend (though this is debated)

In the 1860s, workers quarrying volcanic ash for the Suez Canal construction found ancient ruins. But serious excavation didn’t begin until 1967, when Greek archaeologist Spyridon Marinatos led a major dig.

What they found was astonishing. The ash had preserved Akrotiri like a time capsule—buildings, pottery, frescoes, and furniture survived in remarkable condition.

Current Status: Akrotiri is sometimes called “the Minoan Pompeii” and is one of the most important prehistoric sites in the Aegean. Excavations continue, and new frescoes are still being uncovered.

08

Taxila: Ancient Education Capital

Location: Punjab, Pakistan

Founded: Around 1000 BC

Cultures: Multiple (Hindu, Buddhist, Greek, Persian)

Flourished: 600 BC – 500 AD

Abandoned: Around 5th-6th century AD

Rediscovered: 1863

The Story

While Athens had its philosophers and Rome had its orators, ancient South Asia had Taxila—one of the world’s first and greatest universities.

According to Hindu epic the Ramayana, Taxila was founded by Taksha, son of King Bharat (brother of Lord Rama). Whether that’s historically accurate is debatable, but archaeological evidence confirms the city was a major center of learning for over a thousand years.

Taxila wasn’t just a city—it was THE educational and cultural capital of ancient India.

Ancient University: Students came from across Asia to study at Taxila. The curriculum included:

  • Medicine and surgery
  • Mathematics and astronomy
  • Law and politics
  • Military science
  • Arts and crafts
  • Religious philosophy (Hindu, Buddhist, Jain)

Famous Students: Historical and legendary figures who studied at Taxila include:

  • Chanakya (political philosopher who wrote the Arthashastra)
  • Panini (Sanskrit grammarian)
  • Charaka (father of Indian medicine)
  • Alexander the Great’s contemporary scholars

Strategic Location: Taxila sat at the crossroads of major trade routes connecting South Asia, Central Asia, and the Middle East. This brought merchants, scholars, and ideas from diverse cultures.

Multiple Cities: The archaeological site actually contains ruins of three successive cities built over a thousand years, showing continuous inhabitation and cultural evolution.

Cultural Fusion: Over centuries, Taxila was influenced by:

  • Hindu kingdoms
  • Persian Achaemenid Empire
  • Greek Hellenistic culture (after Alexander’s conquests)
  • Mauryan Empire
  • Buddhist monasteries
  • Kushan Empire

Taxila’s decline came from multiple invasions in the 5th-6th centuries AD:

Hunnic Invasions: The White Huns (Hephthalites) invaded from Central Asia around 460 AD. They destroyed Buddhist monasteries and disrupted the educational institutions.

Trade Route Shifts: New trade routes bypassed Taxila, reducing its economic importance.

Religious Changes: The rise of Hinduism and decline of Buddhism changed the cultural landscape. Many Buddhist institutions moved elsewhere.

By the 6th century, Taxila was largely abandoned. Earthquakes, floods, and time did the rest.

British archaeologist Sir Alexander Cunningham rediscovered and identified Taxila in 1863. Systematic excavations revealed the extent of this ancient educational and cultural powerhouse.

Chinese Buddhist pilgrims Faxian (4th century) and Xuanzang (7th century) both mentioned visiting Taxila in their travel accounts, providing valuable historical documentation.

UNESCO Status: Taxila is now a UNESCO World Heritage Site with ongoing archaeological work revealing new insights about ancient education and urban life.

09

Xanadu (Shangdu): Kublai Khan’s Summer Capital

Location: Inner Mongolia, China

Founded: 1256 AD

Built by: Kublai Khan (Yuan Dynasty)

Abandoned: 1430s

Rediscovered (by West): 19th century

The Story

“In Xanadu did Kubla Khan / A stately pleasure-dome decree…”

English poet Samuel Taylor Coleridge made Xanadu famous with his 1816 poem. But he wasn’t making it up. Xanadu was real, and it was spectacular.

Kublai Khan, grandson of Genghis Khan and founder of China’s Yuan Dynasty, built Shangdu (Chinese name) as his summer capital in 1256. Westerners called it Xanadu, and the name stuck.

Xanadu wasn’t just a summer retreat—it was a symbol of Mongol power and cultural sophistication.

Massive Palace Complex: The city covered 25,000 hectares (nearly 100 square miles) and included:

  • Three walled sections: outer city, imperial city, and palace city
  • Magnificent palaces with painted walls
  • Temples and shrines
  • Hunting grounds and parks
  • Artificial lakes
  • A menagerie with exotic animals from across Asia

Cultural Fusion: Xanadu blended:

  • Mongolian nomadic traditions
  • Chinese imperial architecture
  • Tibetan Buddhist influences
  • Islamic artistic elements

Marco Polo’s Description: The Venetian explorer visited Xanadu in 1275 and wrote detailed descriptions in his travel account. He described the palace as having “gilded halls” and walls “covered with gold and silver.”

Political Power: From Xanadu, Kublai Khan ruled the largest contiguous land empire in history, stretching from Korea to Eastern Europe.

Religious Tolerance: The Mongol rulers practiced religious tolerance, hosting Buddhist, Taoist, Christian, and Muslim religious figures at Xanadu.

After the Yuan Dynasty fell to the Ming Dynasty in 1368, Xanadu lost its political importance. The Ming emperors established Beijing as their capital and had no use for the Mongol summer capital.

Xanadu was eventually abandoned in the 1430s. Local people carried away building materials. Grass covered the ruins. Within a few generations, the spectacular palace became a forgotten pile of ruins on the Mongolian grasslands.

Western travelers rediscovered Xanadu in the 19th century, though locals had never forgotten the ruins. Archaeological excavations didn’t begin seriously until the 1990s.

Archaeologists have uncovered:

  • Foundations of the palace complex
  • City walls and gates
  • Brightly painted dragon heads and other decorative elements
  • Evidence of the sophisticated water supply system
  • Remains of gardens and parks

UNESCO Status: Xanadu became a UNESCO World Heritage Site in 2012, recognized as “an outstanding example of the transition from a nomadic culture to a settled agricultural society.”

10

Urkesh: City of the Forgotten Hurrians

Location: Tell Mozan, Syria

Founded: Around 4000 BC

Civilization: Hurrian

Flourished: 3rd millennium BC

Abandoned: Around 1350 BC

Rediscovered: 1980s (identified as Urkesh in 1990s)

The Story

Ever heard of the Hurrians? Probably not. Most people haven’t. Yet they were a major civilization in ancient Mesopotamia, with their own language, culture, and powerful cities.

Urkesh was their sacred capital—a city so important that Hurrian kings from across the region came there for religious ceremonies. Then it vanished from history so completely that until the 1990s, archaeologists weren’t even sure it had existed.

Urkesh was the religious and cultural center of the Hurrian people during the Bronze Age.

Sacred City: Urkesh housed a major temple complex dedicated to Kumarbi, the father of the gods in Hurrian mythology. Kings came there to be crowned and legitimize their rule.

Strategic Location: The city controlled trade routes between Mesopotamia, Anatolia, and Syria.

Political Influence: At its peak, Hurrian culture influenced:

  • The Hittite Empire
  • The Mitanni Kingdom
  • Various Mesopotamian city-states

Unique Culture: The Hurrians spoke a language unrelated to Semitic or Indo-European languages. They had their own religious practices, mythology, and social organization.

Archaeological Discoveries: When archaeologists identified Tell Mozan as ancient Urkesh, they found:

  • A monumental palace
  • A massive temple platform
  • Royal seals with inscriptions in the Hurrian language
  • An underground “Passage to the Netherworld” used for religious rituals
  • Evidence of sophisticated urban planning

Urkesh’s decline came gradually:

Political Changes: The rise of the Akkadian Empire and later the Mitanni Kingdom shifted political power to other cities.

Economic Shifts: Trade routes changed, reducing Urkesh’s commercial importance.

Environmental Factors: Climate changes may have affected agriculture and water supplies.

By around 1350 BC, Urkesh was abandoned. Sand and time buried the city, and the Hurrian people were gradually absorbed into other cultures. Their language died out. Their cities were forgotten.

In the 1980s, archaeologists discovered Tell Mozan—an impressive mound in northeastern Syria. But they didn’t know what ancient city it was.

The breakthrough came in the 1990s when archaeologists Giorgio Buccellati and Marilyn Kelly-Buccellati discovered royal seals bearing the name “Urkesh.” They had found the lost Hurrian capital.

Excavations revealed that Urkesh was continuously inhabited from around 4000 BC to 1350 BC—over 2,500 years of history.

Current Status: Unfortunately, the Syrian Civil War has disrupted excavations. The site’s current condition is uncertain, though it hasn’t been deliberately destroyed like some other Syrian archaeological sites.

What These Forgotten Ancient Cities Teach Us

After exploring these 10 incredible forgotten ancient cities, some patterns emerge:

  • Nothing Lasts Forever: Cities that ruled for centuries or even millennia eventually fell. Power, wealth, and population are temporary.
  • Nature Always Wins: Whether through earthquakes, floods, volcanic eruptions, or climate change, natural forces eventually reclaim human constructions.
  • Trade Routes Matter: Most of these cities thrived because of strategic locations on trade routes. When trade shifted, cities died.
  • Water Is Life: Advanced water management systems made cities like Petra, Mohenjo-Daro, and Angkor possible. When those systems failed, the cities couldn’t survive.
  • Cultural Memory Is Fragile: Entire civilizations can be completely forgotten within a few generations. Without written records or ongoing use, knowledge vanishes.
  • Technology Rediscovers the Past: From simple shovels to LIDAR scanning and underwater archaeology, improving technology keeps revealing lost cities we never knew existed.

Interactive Challenge: Which City Would You Visit?

Time for a fun exercise! If you could visit ONE of these forgotten ancient cities in its prime (with a time machine, obviously), which would you choose?

Think about:

  • Petra (300 BC): Watch camel caravans arrive with exotic goods. Witness the pink city bustling with international traders. Swim in the desert oasis gardens.
  • Mohenjo-Daro (2600 BC): Experience the world’s first grid-planned city. Use advanced plumbing systems. Try to crack the Indus script mystery.
  • Heracleion (400 BC): Walk through the great Temple of Amun-Gereb. Watch Egyptian and Greek merchants bargaining. Witness pharaonic ceremonies.
  • Angkor (1200 AD): See the world’s largest pre-industrial city in its glory. Marvel at hundreds of massive temples. Navigate the sophisticated canal system.
  • Taxila (300 BC): Study at one of the world’s first universities. Debate philosophy with students from across Asia. Learn ancient medicine.
  • Xanadu (1300 AD): Experience Kublai Khan’s legendary summer palace. See the cultural fusion of Mongol, Chinese, and Tibetan traditions. Explore the imperial parks.

Which sounds most amazing to you? Each of these cities represents a unique window into human history and achievement.

How to Explore These Cities Today

Good news: many of these forgotten ancient cities are accessible to modern travelers (though some are easier to visit than others).

  • Petra, Jordan: One of the New Seven Wonders of the World. Over a million tourists visit annually. Easily accessible from Amman.
  • Angkor, Cambodia: The temple complex at Siem Reap is one of Southeast Asia’s most popular tourist destinations.
  • Mohenjo-Daro, Pakistan: UNESCO World Heritage Site open to visitors, though tourism infrastructure is limited. Conservation efforts are ongoing.
  • Derinkuyu, Turkey: The underground city is open for tours. You can walk through multiple levels (though not all 18 stories are accessible).
  • Akrotiri, Greece: The archaeological site on Santorini is open to visitors. The covered excavation protects the ruins while allowing tours.
  • Caral, Peru: UNESCO World Heritage Site accessible via organized tours from Lima. Less touristy than Machu Picchu but equally fascinating.
  • Heracleion, Egypt: Underwater site accessible only to trained divers with special permits. Artifacts are displayed in museums in Alexandria and Cairo.
  • Taxila, Pakistan: UNESCO site that’s open but sees limited international tourism due to regional security concerns.
  • Xanadu, China: Remote location in Inner Mongolia. Accessible but requires planning and is less developed for tourism.
  • Urkesh, Syria: Currently inaccessible due to the ongoing Syrian conflict. Status uncertain.

Frequently Asked Questions

Why do archaeologists keep finding lost cities?

Technology keeps improving. LIDAR (laser scanning from aircraft) can see through jungle canopy. Ground-penetrating radar reveals underground structures. Satellite imaging detects subtle elevation changes. Plus, many areas that were dangerous or inaccessible are now safer to explore.

Are there more lost cities still undiscovered?

Absolutely! Archaeologists estimate we’ve found only a fraction of ancient cities. Legends and ancient texts mention dozens of cities we haven’t located. Plus, unexpected discoveries happen regularly—like Heracleion being found while searching for something completely different.

What’s the oldest city in the world?

Depends on your definition of “city.” Jericho in the West Bank has been continuously inhabited since around 9000 BC but didn’t become an actual “city” until later. Çatalhöyük in Turkey dates to 7500 BC. For major urban centers, candidates include Uruk and Ur in Mesopotamia (around 4000-3000 BC).

Why didn’t people just rebuild destroyed cities?

Sometimes they did! Many ancient cities have multiple layers from different rebuilding periods. But often, the reasons for abandonment (drought, trade route shifts, disease) meant rebuilding in the same spot didn’t make sense. People moved to better locations.

How do archaeologists know how many people lived in ancient cities?

They estimate based on several factors: the area covered by ruins, density of housing, size of public buildings and infrastructure, grave counts, and comparisons with other ancient cities. These are educated guesses, not exact numbers.

Can I participate in archaeological digs?

Yes! Many archaeological sites accept volunteers. Organizations like “Archaeology Fieldwork” and “ArchaeoSpain” connect volunteers with projects. Requirements vary, but many welcome enthusiastic beginners.

The Bottom Line

These 10 forgotten ancient cities weren’t just random settlements. They were the New Yorks, Londons, and Tokyos of their time. They dominated trade. They influenced culture. They shaped history.

Then they disappeared—buried under sand, hidden by jungle, or swallowed by the sea. For centuries or even millennia, nobody knew they existed.

But here’s the cool part: we keep finding them. Every few years, archaeologists announce another lost city. Our technology improves. Our understanding deepens. The past keeps revealing itself.

So what’s next? Which famous ancient city mentioned in old texts will archaeologists discover next? What currently unknown civilization will emerge from the jungle or desert?

Nobody knows. But that’s what makes archaeology exciting. The next forgotten ancient city might be discovered tomorrow.

And who knows? Maybe a thousand years from now, archaeologists will be excavating our cities, trying to understand our “mysterious” civilization. One day, our modern metropolises might be just as forgotten as Petra, Mohenjo-Daro, and Heracleion.

History keeps moving. Cities rise and fall. But the stories endure—if we’re willing to dig for them.

Want to learn more? Check out archaeological databases, UNESCO World Heritage Site listings, and museums in countries where these cities are located. Many sites have excellent virtual tours and 3D reconstructions available online.

Share this article with anyone who loves history, archaeology, or ancient mysteries. Help keep the stories of these incredible forgotten ancient cities alive!

All facts in this article are verified from archaeological sources, historical records, and peer-reviewed research. No fictional or speculative information has been presented as fact.