Beneath the surface of central Turkey lies Derinkuyu, an underground city that could house more than 20,000 people—entirely hidden until the 1960s. Built into volcanic tuff, the city extends ...

Beneath the surface of Turkey lies Derinkuyu, an ancient underground city built to house 20,000 people. But why was it created, and who lived here? Join me as I explore its deep tunnels and ...

Located in modern-day Turkey, the ancient underground city Derinkuyu spanned seven levels, with four main ventilation channels and over 50,000 other smaller shafts. Researcher Sezin Nas re-created ...