Aizanoi , Latinized as Aezani was an ancient city in western Anatolia. Located in what is now Çavdarhisar, Kütahya Province, its ruins are situated astride the River Penkalas, some above sea level. The city was an important political and economic centre in Roman times; surviving remains from the period include a well-preserved Temple of Zeus, unusual combined theatre- stadium complex, and macellum inscribed with the Price Edict of Diocletian. The city fell into decline in Late Antiquity. Later serving as a citadel, in 2012 the site was submitted for inscription on the UNESCO World Heritage List.