Cappadocia is the the moonscaped region lying in south central Turkey. It is most famous for unique geological features called fairy chimneys. The large, cone-like formations were created over time by erosion of the relatively soft volcanic ash around them. Past cultures have dug into them to create dwellings, castles (like Uchisar) and even entire underground cities like Kaymakli and Derinkuyu, used as hiding places by early Christians. Nearby Kayseri is the gateway to the area. Most popular activities in Cappadocia are: visiting the historic painted cave churches of the many monastic valleys, flying in a hot-air balloon at dawn above the incredible landscape, hiking the volcanic valleys, and spending the night in a comfortable cave hotel room with all the modern comforts.