Derinkuyu Underground City is an ancient
multi-level underground city of the Median Empire in the Derinkuyu
district in Nevşehir Province, Turkey. Extending to a depth of
approximately 60 m, it was large enough to shelter approximately 20,000
people together with their livestock and food stores. It is the largest
excavated underground city in Turkey and is one of several underground
complexes found across Cappadocia.
It was opened to visitors in 1969 and to date, about half of the underground city is accessible to tourists.