Peium
Akçakavak, Turkey
Peium or Peion (Ancient), also known as Peon, was a fortress of the Tolistoboii in ancient Galatia, where Deiotarus kept his treasures. Its site is located near Tabanlıoğlu Kale, Asiatic Turkey.
Fort data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).