Yedikule Fortress (Yedikule Hisari Müzesi) Tours and Tickets

Marking the end of Istanbul’s long Walls of Constantinople, Yedikule Fortress (Yedikule Hisari Müzesi) was built in the fifth century and was expanded during the Ottoman conquest of what today is Istanbul. The fortified structure, also known as the Fortress of Seven Towers, historically contained an infamous dungeon as well as a treasury and an armory.