Letoon
Kumluova, Turkey
Letoon or Letoum (Turkish: Letoon, Ancient Greek: Λητῷον) in the Fethiye district of Muğla Province, Turkey, was a sanctuary of Leto located 4 kilometres (2.5 mi) south of the ancient city of Xanthos, to which it was closely associated, and along the Xanthos River. It was one of the most important religious centres in the region though never a fully-occupied settlement. Letoon was added as a UNESCO World Heritage Site in 1988.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).