SOCHI, RUSSIA - JULY 5, 2015: Monolithic, Ancient Dolmen Established In The Caucasus Mountains Editorial Photo

Volkonsky dolmen is a monument of megalithic culture, located in the Lazerovsky forest district of the Sochi national park. According to the date of construction, the West Caucasian dolmens are referred to the end of the 4-2 millennium BC. The Volkonsky dolmen is the only fully preserved dolmen of the MONOLITH type in the world. Its chamber is completely carved into the rock through a small inlet.