Osaka Castle

Osaka Castle 大坂城
Osaka, Japan
Osaka Castle viewed from Nishinomaru Garden
Type	Azuchi-Momoyama castle
Site information
Condition	Reconstructed
Site history
Built	1583
Built by	Toyotomi Hideyoshi
In use	1583–1868
Demolished	1868

Osaka Castle (大坂城 or 大阪城,, Ōsaka-jō^?) is a Japanese castle in Chūō-ku, Osaka, Japan. The castle is one of Japan's most famous landmarks and it played a major role in the unification of Japan during the sixteenth century of the Azuchi-Momoyama period.

The main tower of Osaka Castle is situated on a plot of land roughly one square kilometer. It is built on two raised platforms of landfill supported by sheer walls of cut rock, using a technique called Burdock piling, each overlooking a moat. The central castle building is five stories on the outside and eight stories on the inside, and built atop a tall stone foundation to protect its occupants from attackers.

The castle grounds, which cover approximately 60,000 square meters (15 acres), contain thirteen structures that have been designated as important cultural assets by the Japanese government, including:

In 1583 Toyotomi Hideyoshi commenced construction on the site of the Ikkō-ikki temple of Ishiyama Hongan-ji. The basic plan was modeled after Azuchi Castle, the headquarters of Oda Nobunaga. Toyotomi wanted to build a castle that mirrored Oda's, but surpassed it in every way: the plan featured a five-story main tower, with three extra stories underground, and gold leaf on the sides of the tower to impress visitors. In 1585 the Inner donjon was completed. Toyotomi continued to extend and expand the castle, making it more and more formidable to attackers. In 1597 construction was completed and Hideyoshi died. Osaka Castle passed to his son, Toyotomi Hideyori.