Nijo Castle (二条城, Nijōjō) was built in 1603 as the Kyoto residence of Tokugawa Ieyasu, the first shogun of the Edo Period (1603-1867). His grandson Iemitsu completed the castle's palace buildings 23 years later and further expanded the castle by adding a five story castle keep.
Nijo Castle can be divided into three areas: the Honmaru (main circle of defense), the Ninomaru (secondary circle of defense) and some gardens that encircle the Honmaru and Ninomaru. The entire castle grounds and the Honmaru are surrounded by stone walls and moats.
Visitors to Nijo Castle enter the castle grounds through a large gate in the east. English audio guides are available for rent at a kiosk just inside the gate. Venturing further into the castle will bring you to the Chinese style Karamon Gate, the entrance to the Ninomaru (secondary circle of defense), where the castle's main attraction, the Ninomaru Palace is located. https://www.japan-guide.com/e/e3918.html