Cappadocia, In a word: fantastic. In the literal sense. It's a fantasy land, both in terms of history and landscape. The region is a network of small towns that have one thing in common: the weird geology of the region lent itself over the ages to people digging caves to live in. And so they did.
And, if you look at a map, and know a little of the history of the Christian church, you'll see that this area also lent itself to becoming a true cradle for the infant church–a cradle which sheltered Christians in these caves for up to fifteen centuries.