The citadel is located in the northwest corner of the city walls, between the Bab al-Faradis and the Bab al-Jabiyah. The citadel consists of a more or less rectangular curtain wall enclosing an area of . The walls were originally protected by 14 massive towers, but today only 12 remain. The citadel has gates on its northern, western and eastern flanks. The current citadel dates primarily to the Ayyubid period while incorporating parts of the older Seljuq fortress. Extensive repairs in response to sieges and earthquakes were carried out in the Mamluk and Ottoman periods.