How Ancient and Modern Underground Cities Redefine Survival and Urban Life
Underground cities have long provided shelter during times of conflict and hardship. From ancient refuges to modern urban networks, these hidden spaces continue to shape how people live and move. Recent discoveries and ongoing use show their enduring importance in both history and daily life. One of the most impressive historical examples is Derinkuyu in Turkey. This underground city could house up to 20,000 people, stretching 18 levels deep—nearly 280 feet below the surface. It included wine and oil presses, stables, chapels, and storage rooms, making it fully self-sufficient. Since its discovery in 1963, over 200 similar underground sites, such as Kaymakli and Özkonak, have been explored in Cappadocia alone.
A newly found multilevel settlement in the same region may rival Derinkuyu's scale. This suggests even greater potential for underground development in the future. In Beijing, a vast network known as the Underground City was built to protect all six million residents from nuclear or chemical attacks. Constructed by over 300,000 locals, including schoolchildren, it spans 85 square kilometres. Today, parts of it shelter between 100,000 and one million people, often called the 'rat tribe,' who live in repurposed bomb shelters. Montreal's RÉSO offers a different take on underground living. The world's largest subterranean complex, it stretches 33 kilometres and covers four million square metres. Nearly half a million people use it daily, especially during harsh winters, as it connects buildings, shops, and the metro system. Unlike emergency shelters, RÉSO proves how underground spaces can improve urban life.
From ancient Cappadocia to modern Beijing and Montreal, underground cities have served as both refuges and functional urban spaces. Their continued use and discovery highlight their role in shaping survival, convenience, and future development. These networks remain vital in times of crisis and everyday living alike.