The territory of Momchilgrad is full of ruins of old hills, sanctuaries, tombs of Muslim clerics. In addition to the famous Thracian sanctuary near Tatul, which is one of the most magnificent megalithic monuments found on Bulgarian land, tourists could also visit the sanctuary of Harman Kaya , which fascinates with its beauty and mystical impact on human perception. It is believed that on the night of May 6 the water that springs from the rocks of Mount Dambala acquires healing power. Here one can take a walk through the unique natural phenomenon – The Petrified Forest. It is difficult to describe the amazing coexistence of the live pine forest with the petrified coniferous predecessors, bringing along a part of the time millions of years ago.