Derinkuyu is district of Nevşehir Province. Derinkuyu is famous for its large underground city (Derinkuyu Underground City). The oldest source about underground cities is the writings of Xenophon. He writes that the people living in Anatolia had excavated their houses underground, living well in accommodations large enough for the family, domestic animals, and supplies of stored food. Cities containes kitchens, stalls, stores, churches, wine and oil presses, ventilation shafts, wells and a religious school. Derinkuyu underground city has seven floors and depth of 85 m. There is also a Orthodox Church dedicated to Saint Theodoros Trion and it also known as Saint Theodoros Trion Church.
