Originally known at Elengubu, the ancient city of Derinkuyu stretches more than 85 metres below the Earth's surface in Turkey, across 18 levels of ... features numerous cave-like rooms, stretching ...

It stands as one of Turkey's largest and most magnificent caves, preserving its ... maintains an average temperature of 18 degrees Celsius and a humidity level of 54%. This, as well as its high ...

It stands as one of Turkey's largest and most magnificent caves, preserving its mystery with sections that have not yet been opened to visitors, as well as parts of it which have yet to be discovered.