Arsameia

Arsameia on the Nymphaios served as the royal capital of the Kingdom of Commagene and occupies a rocky spur above the present-day Kahta Çayı river in southeastern Turkey. Its most remarkable monument is the hierothesion — a funerary sanctuary — built by King Antiochus I for his father Mithridates I Callinicus in the first century BC. A tunnel carved roughly 158 metres into the rock beneath the site remains one of its most puzzling features: scholars still debate whether it served as a royal tomb, a cult passage, or both. Large-scale relief panels depict handshake scenes between the king and Hercules, accompanied by Greek inscriptions that illuminate Commagene's singular blend of Hellenistic and Persian court culture. The site sits close to Nemrut Dağı and is reached via rough tracks, rewarding visitors willing to hike with sweeping views over the river valley and near-total solitude among the ruins.