It is believed that the ruins of the ancient city of Sidema in the Dodurga region of Sedekimer province date back to the Roman era, but the inscriptions and coins found in it refer to a date dating back to before the first century BC, and this city is also known to have shown great development during the Roman period, This situation continued during the Byzantine era. Now, the most eye-catching thing in this city is a polygonal gate, a watchtower, and the ruins of a theater, in addition to the ruins of baths, churches, and rock tombs; In addition to the historical destination of this site, it is also characterized by a beautiful natural side.