Ōgaki Castle

大垣城

Ogaki Castle in Gifu Prefecture is a rebuilt keep and museum that anchors the identity of castle-town Ogaki. Tradition links its founding to 1535, and the site is remembered as a western-army base associated with Ishida Mitsunari during the Battle of Sekigahara. After wartime loss, the four-story keep was reconstructed in 1959 and now guides visitors through exhibits on the battle, samurai and townspeople culture, rest space, and an observation level. It is a compact stop that works well for travelers combining Ogaki with Sekigahara history or a city stroll. Check opening hours and closed days—typically Tuesday-related closures—before you go. Come for a clear local narrative and a landmark skyline view rather than an enormous castle complex.