Assos, also known as Behramkale, was one of the most important port cities of its era and is a crucial cultural heritage site dating back from the period of Roman rule in the region. It includes an ancient theater, agora, necropolis, and protective walls.
Located 17 kilometers (about 11 miles) south of the present-day town of Ayvacik, it was added to UNESCO's Tentative World Heritage List on April 15, 2017.