Imitating the gates found along the Great Wall in China, the battlement on it is built to serve as a hiding place to provide protection for the archers. The flag hoist on the battlement represents the terrain of the army there. Climbing up the tower, visitors can see all the movements around and imagine themselves as ancient guards.

External link: http://english.tcrc.taipei.gov.tw/ct.asp?xItem=982480&CtNode=22815&mp=104042