Hadrian's Gate

Hadrian's Gate or Üçkapılar is a triumphal arch located in Antalya, Turkey, which was built in the name of the Roman emperor Hadrian, who visited the city in the year 130. It is the only remaining entrance gate in the walls that surround the city and harbor.

Hadrian's Gate consists of two colonnaded facades, three entry arches rising above four pylons and a tower standing on either side. It is about 8 meters high. The Southern Tower, known as the Julia Sancta, is from the Roman era but was likely built independently of the gate. The bottom section of the Northern Tower is from Roman times, but the upper part was rebuilt in the first half of the thirteenth century AD during the reign of Seljuk sultan Alaeddin Keykubat I and contains an inscription in Arabic script.

Wikipedia