The Orlova Skala natural landmark is located in the land of the village of Sarnitsa, the municipality of Mineralni Bani. The natural landmark has an area of 1.5 hectares. It is a complex of interesting and majestic rocks, some of which reach 30-40 m in height. It is a rock phenomenon resembling a medieval castle with sturdy towers. There was an old Thracian settlement here, and the remains of a fortress from the Neolithic Age can still be seen today. Trapezoidal cult niches are carved into many of the rocks. Most of them have a trapezoidal shape, but there are also some with cylindrical vaults. It is believed that urns with the ashes of deceased people from the lower class were placed in the numerous niches on the rocks.