Trabzon Castle

The Trabzon Castle (Turkish: Trabzon Kalesi) is a fortress located in the city of Trabzon, northeastern Turkey. Constructed on foundations dating back to Byzantine era with cut stones from former structures at site, the castle stretches from a hill on the backside of the city to the Black Sea shore. It consists of three parts, the Upper Fortress (Yukari Hisar), the Middle Fortress (Orta Hisar) and the Lower Fortress (Aşağı Hisar).

• http://en.wikipedia.org/wiki/Trabzon Castle