Skull Tower in Nis is quite literally, as the name would suggest - a big tower made from human skulls. After the failed Serbian uprising against the Ottomans in 1809, the Turkish governor at the time, Hurshid Pasha decided it would be a major deterrent to others to take the heads of 1,000 executed Serb prisoners and turn them into a 5 meter high tower. Most of the skulls have since been stolen, however a few poor ones still remain with either circular bullet holes between the eyes, or a sword chop in the middle of the head. A lovely way to spend a Sunday afternoon! :(