🏛️ Seleukeia Tracheia-Diokaisareia Olba
Ruined Hellenistic and Roman port city on the Cilician coast
📌 Fast Facts
- Located on the Mediterranean coast of Cilicia, in present-day Mersin Province, Türkiye
- Founded as a Hellenistic settlement (Seleukeia Tracheia) in the 3rd century BCE
- Renamed and expanded under Roman rule as Diokaisareia and later Olba
- Accessible as an archaeological site with remnants of fortifications, temples, and harbor structures
Seleukeia Tracheia-Diokaisareia Olba is a multi-period archaeological site on the Cilician coast that documents successive Hellenistic and Roman occupation. The settlement began as a Seleucid port and trading hub, underwent urban reorganization under Roman administrative reform, and continued as a functioning city through the Imperial period. The site preserves architectural and structural evidence spanning nearly five centuries of Mediterranean maritime commerce and settlement ...