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Beneath the Surface: Exploring the Top 5 Underground Cities Around the World

Hidden beneath the earth’s surface, a fascinating world of underground cities waits to be explored. These subterranean marvels offer a unique glimpse into human ingenuity and history, from ancient times to modern-day survival strategies. From the historic depths of Turkey to the secretive tunnels of England, here are the top five underground cities around the globe, including the remarkable Kaymaklı in Turkey.

1. Kaymaklı Underground City, Turkey

kaymakli underground city

Historic Refuge:

Located in the historical region of Cappadocia, Kaymaklı is one of the largest and most impressive underground cities in Turkey. This ancient city was carved from the soft volcanic rock of the region and is believed to have been built around the 7th and 8th centuries B.C. Initially used by the Phrygians for protection against invasions, it has been expanded by subsequent inhabitants over the centuries. With up to eight levels deep, the city includes everything from stables, churches, and wine cellars to a multitude of residential areas. Visitors can explore the narrow passages and marvel at the ingenuity of ancient urban planning.

2. Derinkuyu Underground City, Turkey

derinkuyu underground city

Massive Subterranean Complex:

Not far from Kaymaklı lies another expansive underground city, Derinkuyu. This complex goes 60 meters deep and could house as many as 20,000 people along with their livestock and food stores. It was fully equipped with ventilation shafts, wells, and connecting passageways. The city served as a massive bunker to protect its inhabitants from invaders and harsh weather. Its intricate network of tunnels and rooms showcases advanced engineering and a deep understanding of communal living.

3. Montreal’s RESO, Canada

Modern Urban Network:

Montreal’s RESO, also known as La Ville Souterraine, represents a modern take on underground cities. It is one of the largest underground complexes in the world, linking office towers, hotels, shopping centers, residential and commercial complexes, and educational facilities. Stretching over 33 kilometers of tunnels covering more than 4 million square meters, it provides a warm and safe haven during the harsh Montreal winters, helping residents and visitors avoid the cold while accessing a wide array of urban amenities.

4. Edinburgh Vaults, Scotland

edinburgh vaults scotland

Historical Vaults:

Beneath the streets of Edinburgh lies a series of chambers formed within the 19 arches of the South Bridge, completed in 1788. Originally used to house taverns, cobblers, cutlers, smelters, and other tradesmen, and as storage space for illicit goods, the vaults were eventually abandoned and forgotten about until their rediscovery in the 1980s. Today, they offer a haunting glimpse into the darker side of Edinburgh’s past, with guided tours available that explore their history and rumored paranormal activity.

5. Wieliczka Salt Mine, Poland

the wieliczka salt mine poland

Architectural Wonder:

The Wieliczka Salt Mine, located in the Krakow metropolitan area, is an underground city carved entirely out of rock salt. Mining operations began in the 13th century, and over time, miners created one of the world’s most fascinating subterranean landscapes, featuring chapels, reception rooms, and statues sculpted by the miners themselves. The highlight is the Chapel of Saint Kinga, an impressive underground church where everything from chandeliers to altarpieces is made of salt. This mine is not only a historical monument but also a testament to the cultural and spiritual life of the miners.


Exploring underground cities offers a unique perspective on human resilience and creativity. These hidden cities provide a portal into our past and present, showcasing architectural wonders and the capacity to adapt to challenging environments. Whether you’re walking through the ancient, narrow corridors of Kaymaklı or marveling at the modern expanse of Montreal’s RESO, these subterranean cities are sure to leave you in awe of the depths of human ingenuity.