Buzovgrad Thracian Megalith
The Thracians were the ancient tribes who inhabited the territory of today’s Bulgaria. Not much is known about them because they didn’t have an alphabet. Some of the most impressive monuments they have left are the megaliths. The Buzovgrad megalith is one of them. Historians believe that its purpose was for special sun rituals. The megalith is designed in such a way that the sunrise light on the day of the summer solstice passes through the megalith opening and falls on a special stone carved symbol on the opposite side of the rock.