On a hill known as Göbekli Tepe ("Potbelly Hill") in southeastern Turkey, excavations led by Klaus Schmidt uncovered several large megalithic enclosures that date between 10,000 and 8000 B.C.E., the dawn of civilization and the Neolithic age. Each of these circular enclosures, which many have described as Turkey's "Stonehenge," consists of 10 to 12 massive stone pillars surrounding two larger monoliths positioned in the middle of the structure.