Osaka Castle is a flatland castle. The first defensive barrier of Osaka Castle, constructed on a slightly elevated hill, is a moat surrounding the castle. At first glance, it seems impossible to attack the castle, with its seemingly impenetrable walls and a deep moat guarding it. The Tokugawa family, who successfully captured the impregnable Osaka Castle, enjoyed 265 years of glory.
By Jungchan Lee/Korea Travel News