You may have heard stories about people renovating their homes, only to stumble upon a secret room. Perhaps it’s a play room? A cellar? A place to stash sensitive documents and treasures? All that mystery can be pretty scary yet exciting. But back in 1963, a resident of Nevşehir Province of Turkey found a secret room behind one of his walls.
…which led to an incredible discovery: the ancient underground city of Derinkuyu.
Derinkuyu is not the largest nor oldest underground city. But at 18 stories, it is the deepest.