05.09.2017, Turkey, Derinkuyu, Nevsehir - The multi-storey underground city of Derinkuyu was built by Christians as a refuge hundreds of years ago. The information about the ancient city varies: 12-18 storeys, depth up to 85m, area up to 2500 square metres, age between hundreds or thousands of years, is said to have been built by the Christian Phrygians between the 8th and 7th centuries and was first mentioned in a written text in 370 BC. 00A170905D176CAROEX.JPG [MODEL RELEASE: NO, PROPERTY RELEASE: NO (c) caro images / Bastian, http://www.caro-images.com, [email protected] - In case of using the picture for any purpose, please contact the agency - the picture is subject to royalty!]