derinkuyu

First built in the soft volcanic rock of the Cappadocia region, possibly by the Phrygians in the 8th–7th centuries B.C according to the Turkish Department of Culture, the underground city at Derinkuyu may have been enlarged in the Byzantine era. The city was connected with other underground cities through miles of tunnels.
With its eleven floors extending to a depth of approximately 85 m, it was large enough to shelter tens of thousands of people together with their livestock and food stores. It is the largest excavated underground city in Turkey and is part of a network of several underground complexes found across Cappadocia.





Derinkuyu Underground City