🇺🇦 Ukraine · Submerged site
Chersonesus Taurica – Submerged Quays (Chersonesos)
Classical to Medieval (422 BCE – 14th c. CE) · Doric Greek / Bosporan / Roman / Byzantine / Kievan Rus' orbit
422 BCE Doric Black Sea polis whose harbour quarter now lies under Quarantine Bay.