The Osaka Castle is one of Japan’s landmark castles. It is surrounded by an impressively system of defenses comprising huge walls and wide moats. Some of the rocks making its walls are gigantic, and the methods they used to bring them there is mind boggling (I’ve heard they used wooden barrels filled with air to navigate the rocks from the quarry to the castle). The Castle and its surrounding park is a great place to take a break from the crowded streets of Osaka and the view of the city from the observation deck is really worth the visit. The lower floors of Osaka castle present the lords and battles that made the history of the city of Osaka.