These stunning images show the underground 18-storey city discovered by chance by a man renovating his home.
In 1963, a Turkish dad knocked down a wall in his basement, revealing a secret room which led to an underground tunnel that took him to the ancient city of Derinkuyu.
Photos of the preserved city document how 20,000 people – including livestock and entire food supplies – could have lived 85m beneath the earth.
Thought to have been created during the Byzantine era in 780-1180AD ... Read even more
