It feels like stepping back 2,000 years in time. In a country overflowing with archaeological treasures, the ancient city of Ephesus, in western Turkey’s İzmir Province, remains the crown jewel.

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Ephesus, Turkey (CNN) — The security lines at the entrance move with airport-like efficiency. Beyond them, the concrete of the 21st century falls away, replaced by creamy pillars and marble paving ...