The highlight of the tour of the Tosho Palace, the Yangmingmon, is 11.1m high, 7m in front, and 4.4m on all sides, with sculptures of early Edo decorative techniques. The two-tiered tower gate, which is decorated with a polar chromatic color, has a variant name of Higurashi (Higurashi-mon) because it is impossible to see it even if you watch it all day. It is also called a twelve-legged gate because it is supported by twelve cylinders. It is said that the common people were not allowed to pass through this gate until the Meiji Restoration, and the samurai deposited their swords, and even the envoys changed their costumes.