Ancient Underground City Discovered in Turkey | Cities of the Underworld (Season 1)

In the center of Turkey lies an incredible rock formation with a mysterious underground city buried beneath, in this clip from Season 1, “Secrets of the Ancient Metropolis.“ Watch all new episodes of Cities of the Underworld, returning, Tuesdays at 10/9c, and stay up to date on all of your favorite The HISTORY Channel shows at #CitiesoftheUnderworld