For an eighth year now, a team of archaeologists led by Prof. Nikolay Ovcharov, has been exploring the grounds of the holy city of Perperikon (also Perpericon) in the eastern Rhodope Mountains. The place acted as a cult site as early as the end of 5 and the early 4 millennium BC. Researchers have come across finds from the second millennium BC and there is evidence the city prospered during Thracian times in Antiquity.
Bulgarian scientist will try to prove their hypothesis that the rock sanctuaries of Tatul and Perperikon in the Eastern Rhodopi Mountains are more ancient than Egyptian pyramids. To prove their hypothesis, the scientists will organize the biggest archaeology expedition in the country that will be situated near the southern town of Kardzhali. The top Bulgarian archaeologist Nikolay Ovcharov will lead the expedition.