Turkey - Göbekli Tepe

"Located in the Germuş mountains of south-eastern Anatolia, this site presents monumental circular and rectangular megalithic structures, interpreted as enclosures, which were erected by hunter-gatherers in the Pre-Pottery Neolithic age between 9,600 and 8,200 BC. It is likely that these monuments were used in connection with rituals, probably of a funerary nature. Distinctive T-shaped pillars are carved with images of wild animals, providing insight into the way of life and beliefs of people living in Upper Mesopotamia about 11,500 years ago."

Source: UNESCO World Heritage

Ruins of Gobeklitepe. Thanks to Gokhan of Turkey.