A photo from open sources
Photo: newsinphoto.ru
In the historical region of Cappadocia in Turkey, the most the largest of the currently known underground cities. His age is about 5 thousand years, writes the local newspaper Hurriyet. The settlement was discovered during construction work. According to preliminary data, the length of its underground galleries is at least 7 kilometers and an area of 45 hectares. 
Photos from open sources
“We stopped a construction project worth 90 million Turkish lire (about $ 40 million), but do not regret it. Discovered by us underground city may become the largest not only in Turkey, but also in the world, “said the head of the Department of Housing in Turkey Mehmet Turan. According to him, the study of the underground city is already began archaeologists.
Turkey
