UNESCO world heritage :: albergo della civita, matera, italy
Guyaju Cave Dwellings in China - the biggest cave dwelling yet discovered in China, and has a total of 147 chambers of various size. On the upper stories there is a palace like space that has very large areas and many store rooms. The cliff is granite and its not known when this was constructed or by whom, there are no references to it in any writings of the past. It has water channels, hearths for cooking and even smoke channels to keep the air clean. It sits above a river in a small valley.
Kinver Edge, Staffordshire, where the last of the troglodytes dwelt in England. There is a complete set of cave-houses excavated into the local sandstone, some restored to a habitable state. It has been plausibly suggested that these cave-houses and their small gardens were the inspiration for Hobbiton in the writings of J.R.R.Tolkien, who grew up in nearby Birmingham and Staffordshire. It’s owned by the National Trust