Göbeklitepe

Göbekli Tepe is a Neolithic archaeological site in Upper Mesopotamia (al-Jazira) in modern-day Turkey. The settlement was inhabited from around 9500 BCE to at least 8000 BCE, during the Pre-Pottery Neolithic. It is known for its large circular structures that contain large stone pillars – among the world's oldest known megaliths. Many of these pillars are decorated with anthropomorphic details, cl... (Wikipedia)