Belogradchik Rocks are a natural phenomenon aged more than 200 million years. They cover a territory of 30 km length and about 6-7 km width. Due to its unusual forms, the rocks have various names. The most popular ones are The Horse Rider, The Maiden, The Castle, Adam and Eve. The rocks called Erkyupriya and Borich are situated to the west of Belogradchik.