Osaka Castle was built at the end of the 16th century, made of wood, on two embankments of earth and hewn stones, surrounded by a moat. It was destroyed and rebuilt many times, currently it is a concrete reconstruction of the 17th-century Osaka Castle. There are 13 buildings in the castle, the main of which is a five-story tower.
The castle covers an area of over 6 hectares and is surrounded by 106 hectares of an open park.
Currently, a historical museum called Osaka Castle Museum operates inside the castle.
