Know dating turkish man
The tunneling architects included thousands of ventilation shafts varying in size up to 100 feet deep (30m).
It is believed Derinkuyu was later expanded during the Byzantine era (330-1461 CE).
Archaeologists believe the underground cities of Cappadocia could number in the hundreds. The underground city at Derinkuyu is neither the largest nor oldest, but it fascinates as it is the deepest of the underground cities and was only recently discovered in 1963.
(The largest, , has been inhabited continuously since first constructed).
The elaborate subterranean network included discrete entrances, ventilation shafts, wells, and connecting passageways.
It was one of dozens of underground cities carved from the rock in Cappadocia thousands of years ago.