Okayama Castle is situated in 2-3-1 Marunouchi, Kita-ku, Okayama Prefecture. Ukita Hideie, who was given favorable treatment by Hideyoshi Toyotomi and became a powerful feudal lord, spent eight years building this castle. The Castle has a black exterior, earning it the nickname "Crow Castle". After the Battle of Sekigahara, Kobayakawa Hideaki became lord of the castle, extended the castle area, and built a town around the castle. After the premature death of Hideaki, it was the lords of the Ikeda clan who led to the Meiji Restoration. The Moon Tower and Nishinomaru Nishite Tower are listed as Important Cultural Properties, and the Okayama Castle ruins were designated as a Historical Site. At the end of the 17th century an Ikeda lord built the Koraku-en as a garden to relax and enjoy the outdoors. Koraku-en is one of the Three Great Gardens of Japan.