Just 3 km. northeast of Primorsko, on the ridge of Maslen Cape or where Strandja Mountain envelops the sea coast, is hidden the megalithic rock Thracian sanctuary "Begliktash". It is the largest footprint left by the Thracians on our southern Black Sea coast, which became known to science only in 2003. Begliktash /Turkish translation - tax stone; beglik - tax, tash - stone/ is compared and called "the Bulgarian Stonehenge" not only because it represents specifically arranged stones in a circle on a rock surface, but also because of the functions it is believed to have fulfilled, namely - sundial, calendar and temple. Archaeologists suggest that it was established around the 14th century BC and functioned until the 4th century. One more reason why scholars believe that the Thracian shrine was magical, and perhaps still hides its magic, is its location next to the ancient city of Ranuli. Although the site of the Wolf's Egret has been explored since its discovery, archaeologists have not yet uncovered the entire mystique called Begliktash.