Bukseoporu is a bastion between Hwaseomun and Janganmun on the wall of Suwon Hwaseong. It is a three-story brick structure: the lower two floors were used to fire cannons or guns, and the upper pavilion was used to watch for and attack enemies. Built on flat ground, it is the tallest of the five bastions of Hwaseong. The entrance is locked, so it cannot be entered.