This Underground City Was Found by Accident in a Man's Basement

In 1963, a man in central Turkey knocked down a basement wall — and found a tunnel that led to a city built for 20,000 people, eighteen floors underground. In this episode, we go inside Derinkuyu: how it was engineered, who actually built it, and why an entire civilization built itself a way to disappear. Subscribe for more lost cities and vanished civilizations — new episodes every week. #Derinkuyu #LostCities #AncientHistory #Cappadocia #AncientMysteries #Archaeology #Documentary