David Gareji - Credit: Wikimedia Commons
David Gareji () is a rock-hewn Georgian Orthodox monastery complex located in the Kakheti region of Eastern Georgia, on the half-desert slopes of Mount Gareja on the edge of Iori Plateau, some 60–70 km southeast of Georgia's capital Tbilisi. The complex includes hundreds of cells, churches, chapels, refectories and living quarters hollowed out of the rock face. Read more on Wikipedia
Source: en.wikipedia.org