Tlos antique city, with an estimated historical past dating back to 2000 years B.C., is one of the most prominent settlements, attracting experts and visitors by virtue of its ruins and splendor.
The city walls to the north-east of the acropolis are from the early Roman era, and the rock tombs are fine samples of the Lycian culture. The city walls on the south-west were built during the Roman period and were repaired by the Byzantians.
The group of buidings on top of the acropolis were erected as residences of Ali Agha, who was appointed as the governor of the region during the 19th century, and his retinue.
On the site of Tlos, the agora, the rock tombs and sarcophagi, the stadium, the acropolis, the public baths, the church and the theatre are major noteworthy ruins.
The antique city is located on a cliff overlooking the Xanthus Valley, where numerous civilizations have left their traces.