A history museum on the 2nd floor of Nakamura Park Cultural Plaza. The museum mainly collects, keeps and displays cultural properties connected with Toyotomi Hideyoshi and Kato Kiyomasa, two military commanders from the Owari area, including items that belonged to them, historical documents and pictures.
Using actual documents, reproductions, models and so on, the permanent exhibitions give an easy-to-understand introduction to the period from when Oda Nobunaga moved toward bringing the whole country under one rule, through unification under Hideyoshi and the Battle of Sekigahara after his death, to the fall of Toyotomi at the Siege of Osaka. Special exhibitions are held every autumn.