角楼则是故宫建筑群极具特点的建筑，坐落在故宫的四个城角之处。故宫角楼下就是故宫护城河，河中的倒影与角楼交相呼应，成为一道靓丽的风景线。

Corner towers on the four coigns of lofty walls of the Forbidden City were established in 1420, rebuilt in the Qing Dynasty (1644-1911). As one part of the Forbidden City, they served as the defense facility just as the lofty walls, the gate towers and the moat. The corner towers rest on the base with Buddist-style building surrounded with stone columns.