There are so many fascinating things to see in Cappadocia that you could spend a lifetime here. The main must see are the two large open-air museums and the best of the underground cities. I’m recommended the underground cities. They called “Kaymakli underground city”. It's built under the hill and was opened to visitors in 1964. The underground city consists of 8 floors below ground but only 4 of them are open to the public today. If you go with a special friend they have private tours to Kaymakli Underground City. The rate of the tour is 70 Euro per person based on minimum 2 people including transfer from your hotel in Goreme.