2. Kayaköy, Turkey
Kaykoy is deserted village in Turkey. In the 19th century, Greeks and Turks here lived side-by-side, but at the ending of the Greco-Turkish War (1919–1922), Kayaköy was already completely abandoned. Around 500 houses remain as ruins and are under the protection of the Turkish government. In the middle of the village stands a fountain source from the 17th century. Kayaköy was adopted by the UNESCO as a World Friendship and Peace Village.