|Summary:||Well-preserved Hellenistic system of walls and towers|
The fortifications of Assos enclosed an area of some 55 ha., including the acropolis and the harbor of the city. Two major gateways and seven smaller gates led into the city. One round and many square towers, some still standing to a height of up to 20 m., defended the circuit walls.
The standing portions of the city walls mostly date to the Hellenistic period, but earlier phases are visible in places; some of these probably date back to the Archaic period.