Nijojo Castle was built in 1603.
This castle was a demonstration of Shogun Tokugawa Ieyasu's prestige and to keep an eye on the movements of the Imperial Cort.
In 1867, Shogun Tokugawa Yoshinobu declared the restration of imperial rule in this castle, thus ending the Tokugawa dynasty.
The Ninomaru palace is designated as National Treasure.
The Kara-mon gate is originally part of Hideyoshi's Fushimi Castle.