Göbekli Tepe is an archaeological site from the New Stone Age, in the Turkish part of Upper Mesopotamia. The settlement was inhabited from around 9500 BCE to at least 8000 BCE, during the Pre-Pottery Neolithic. It is known for its circular structures that contain large stone pillars – among the world's oldest known megaliths. Many of these pillars are decorated with anthropomorphic details, clothing, and sculptural reliefs of wild animals, providing archaeologists insights into prehistoric religion and the iconography of the period. The 15 m (50 ft) high, 8 ha (20-acre) tell is covered with ancient domestic structures and other small buildings, quarries, and stone-cut cisterns from the Neolithic, as well as some traces of activity from later periods.
The site was first used at the dawn of the southwest Asian Neolithic period, which marked the appearance of the oldest permanent human settlements anywhere in the world. Prehistorians link this Neolithic Revolution to the advent of agriculture but disagree on whether farming caused people to settle down or vice versa. Göbekli Tepe, a monumental complex built on a rocky mountaintop with no clear evidence of agricultural cultivation, has played a prominent role in this debate.