The Qishla, or fortress, of Baghdad was built by the Ottoman Empire in 1855 as a headquarters for their troops in the region. The tower contains one of the oldest architectural clocks in the world. After the fall of the Ottomans in 1922, the building was converted into a serail, a living quarters for wives, concubines, and female relatives. Later it became part of the International Green Zone. The area was in disrepair after the Iraq War and there were few resources to rebuild it. Recent efforts are being made to restore this historical treasure, as well as others throughout Iraq, as a center for tourism and national pride. You can read more about the effort to restore the Qishla of Baghdad here.