Nalda Mağaraları, La Rioja, İspanya - Stok Fotoğraf ve Görsel

The paths inside Selime Cathedral. Selime Monastery in Cappadocia, Turkey. Selime is town at the end of Ihlara Valley. The Monastery is one of the largest religious buildings. Cave formations.

Uplistsikhe, GE-March,4 2015: Old cave city Uplistsikhe in Caucasus region, Georgia.

Long House - Mesa Verde National Park

Dara ( Anastasiopolis ) Ancient City. Mesopotamia. Mardin, Turkey. Dara Ancient City, one of the most important settlements of Mesopotamia.

Matera, Basilicata, Italy: interior of an old cave house carved into the tufa rock in the downtown of the ancient Italian city