SPAIN: One of the largest and oldest megalithic complexes in Europe was identified across 1,500 acres in southern Spain. The site of La Torre–La Janera, in Huelva Province, consists of more than 500 standing stones, called menhirs, that were erected as much as 7,000 years ago. Other megalithic structures in the complex include dolmens, cists, burial mounds, and stone enclosures. Over a period of 3,000 years, the complex was likely used for important ceremonial and religious activities, as well as for social gatherings.