Nabta Playa
Egypt, Egypt
Nabta Playa was once a large endorheic basin (a temporary lake, or "playa") in the Nubian Desert, located approximately 800 kilometers south of modern-day Cairo or about 100 kilometers west of Abu Simbel in southern Egypt, 22.51° north, 30.73° east. Today the region is characterized by numerous archaeological sites. The Nabta Playa archaeological site, one of the earliest of the Nubian Neolithic Period, is dated to circa 7500 BC.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).