On the hill, west of Nea Peramos, you will find the remains of a castle with byzantine architecture which is believed by many to be the byzantine city of Anaktoroupoli that appeared between the 10^th and 15^th century. Modern data show that the castle was built during 1167-1170 in order to control a port between Thessaloniki and Istanbul. Following the conquer of the castle by the Ottomans Turks, some changes have been made, while the settlement was relocated between the 16^th and the 17^th century to the village of Eleftheres, where the castle is located today, in order to avoid the threat of pirate attacks.