2. Fairy chimney houses. Cappadocia. Turkey.
By Alaskan Dude
Fairy chimney houses, carved out of rocks in the Roman period, can be found in Göreme, a town in Cappadocia and an important monastic center between 300-1200 AD. The site comprises many rock-hewn churches and chapels, as well as some remnants of the underground cities.
Capadocia. By Mario Tome
3. Stone House. Portugal.
The stone house in the Fafe mountains in northern Portugal was built in 1974. It was constructed between four large boulders found on the site.