Skull Tower is a stone structure embedded with human skulls located in Nis, Serbia. It was constructed following the Battle of Cegar of May 1809, during the First Serbian Uprising. Serbian rebels under the command of Stevan Sindeli'c were attacked by the Ottomans on Cegar Hill, near Nis. Knowing that he and his fighters would be impaled if captured, Sindeli'c detonated a powder magazine within the rebel entrenchment, killing himself, his fellow rebels and the encroaching Ottoman soldiers. Vizier Hurshid Pasha ordered that a tower be made from the skulls of the fallen rebels. The tower is 4.5 metres (15 ft) high, and originally contained 952 skulls embedded on four sides in 14 rows.