Aladzha Monastery
Varna, Bulgaria · built 1101
Aladzha Monastery is a medieval Orthodox Christian cave monastery complex in northeastern Bulgaria, 17 km north of central Varna and 3 km west of Golden Sands beach resort, in a protected forest area adjacent to the Golden Sands Nature Park. The monastery caves were hewn into a 25-m high vertical karst cliff near the upper edge of the Franga Plateau on several levels. The complex includes two small nearby catacombs.
Monastery data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).