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🏛️ Seleukeia Tracheia-Diokaisareia Olba

Archaeology - Ancient Rome Türkiye Asia

🏛️ Seleukeia Tracheia-Diokaisareia Olba
Ruined Hellenistic-Roman port city on the Cilician coast


🕐 2 min read · Updated 15 Mar 2026 at 23:41
📌 Fast Facts
  • Located in Mersin Province, southern Türkiye, on the Mediterranean coast
  • Founded as Seleukeia Tracheia in the 3rd century BCE; later renamed Diokaisareia during the Roman period
  • Served as a major port and naval base throughout Hellenistic and Roman antiquity
  • Partially excavated; ruins accessible but undeveloped as a tourist site

Seleukeia Tracheia-Diokaisareia Olba is an ancient harbor settlement on the Cilician coast, encompassing remains from both the Hellenistic ...

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