Kaymakli Yeralti Kenti (Underground City of Kaymakli)

It is one of the largest underground cities in Cappadocia with eight stories. It covers an area of approximately 4 km² / 1.5 sq mi. Visitors can see only about 10% of the city by going down a maximum of five floors. It probably is connected to nearby Derinkuyu. It was opened to visitors in 1964. The population of Kaymakli is thought to have been about 3,000.