The city of Jinn, known as Derinkoyo, is located in the city of Jin in the depth of up to 51 meters below the surface of the earth, and is one of the most remarkable archaeological discoveries in the world, thanks to the discovery to a tourist in the province of central Anatolia in Turkey, a city or a well The cathedrals are large, deep and long. It is worth mentioning that the city of Dirnkoyo or the city of the jinn is a city integrated in terms of living accommodation, kitchens and corridors, in addition to the existence of a large number of religious rooms and large-scale graves, and archaeological studies indicate that the construction of the city of the jinn has come to deter risks and concealment, Large rolling that was invading the entrances of the city and blocking its ports. It is noteworthy that the first layer of the city dates back to 1400 AD, and historical forecasts indicate that the depth of the city exceeds eighty-five meters, but this has not been proven absolutely, and the city has an amazing interior design; it can accommodate more than ten thousand people Almost. Engineering and construction The architecture of the city of Dirnkoyo is characterized by difficulty and precision. Soft volcanic rocks are the basis of construction in the city. The reason is that these rocks form columns to support the layers of the earth above them. It is noteworthy that the architects of the building have confirmed that the construction of the city of the jinn under the ground with such precision and surprise is a challenge to any other civilization, and the description of the construction of the city to be a miracle no less valuable than the pyramids of Giza. Archaeologists and engineers were surprised that the city's corridors and corridors had not been hit by any disaster. The city's builders were in doubt that they had acquired one of the modern technologies of their time in building the city. The city's layers and rooms The city of Jinn has a depth of more than 85 meters underground. Despite this great depth, it is equipped with a large proportion of men, children and women. Archaeologists have been able to discover only thirteen layers below the earth's surface, and the city has a sufficient number of ventilation holes that allow the passage of fresh air to the lowest layers of the city. In addition to the above, the city consists of a number of large rooms, and according to estimates, it can accommodate a population of more than 20 thousand people, in addition to temples, food tanks and waterways