仁德天皇
The museum showcases Sakai’s history from ancient times to the present day, featuring artifacts excavated from the Mozu "Kofun" Group, represented by the Emperor Nintoku Tumulus (The Mozu "Kofun" Group was together with the Furuichi "Kofun" Group, inscribed as a UNESCO World Heritage Site as the Mozu-Furuichi Kofun Group: Mounded Tombs of Ancient Japan, on 6 July 2019.), goods and historical documents remaining from Sakai’s period of high trade as an autonomous city, and materials about Sakai-born historical characters, including Gyōki and Sen-no Rikyu.