In 1963, a man renovating his home in Turkey discovered the ancient city of Derinkuyu after noticing his chickens kept disappearing through a crack in his basem

In 1963, a man renovating his home in Turkey discovered the ancient city of Derinkuyu after noticing his chickens kept disappearing through a crack in his basement. The hidden 18-level underground city extends 85 meters (279 feet) below the surface and could shelter up to 20,000 people. Derinkuyu, …