🏛️ Seleukeia Tracheia-Diokaisareia Olba
Ruined Hellenistic and Roman port city on the Cilician coast
📌 Fast Facts
- Located on the Mediterranean coast of southern Türkiye, in Mersin Province
- Founded as Seleukeia Tracheia in the 3rd century BCE; renamed Diokaisareia Olba under Roman rule
- Served as a significant maritime trading port during the Hellenistic and Roman periods
- Now an archaeological site with scattered ruins accessible to visitors
Seleukeia Tracheia-Diokaisareia Olba was a dual-purpose settlement that functioned as both a port city and civic centre on the Cilician coast. The site represents continuous urban occupation spanning the Hellenistic period through the Roman Imperial era. Ancient sources and archaeological evidence indicate the settlement played a role in regional maritime commerce and administration ...