Tsuchiura City Museum

Tsuchiura City Museum is a municipal museum located in the center of Tsuchiura City, Ibaraki Prefecture, built adjacent to the ruins of Tsuchiura Castle (Kasumigajō), where the museum's collections and exhibitions center on the history and culture of Tsuchiura Domain. Tsuchiura Castle is counted among the "Seven Great Castles of the Kantō Region" and is a stepped-terraces-style flat castle (teikakushiki-hirashiro); the restored East and West Turrets, together with the Taiko Gate (turret gate), are designated as Ibaraki Prefectural Cultural Properties. The museum functions as a systematic repository of the domain's administrative history and samurai cultural materials within this historically significant setting.

The museum is particularly recognized for its collection of swords and armor transmitted within the Tsuchiya clan—the daimyo household of Tsuchiura Domain. The Tsuchiya were a fudai daimyo family that produced senior councilors (rōjū) and chamberlains (sobayōnin) for the Tokugawa shogunate; as a result, numerous swords have been transmitted to the household as bestowals and gifts from successive shoguns and other prominent daimyo. Several swords designated as Ibaraki Prefectural Cultural Properties are included in the collection, receiving high evaluation as materials that directly transmit Edo-period samurai culture.

The permanent exhibition systematically presents the natural history, history, and folk culture of Tsuchiura and Lake Kasumigaura, with the samurai culture section focused on the Tsuchiya clan's swords, armor, and sword fittings. As a high-quality repository of castle-historical materials, the viewing route combining the museum with the surviving castle buildings (National Important Cultural Properties) has become one of the essential destination sites for castle and samurai-culture tourism in northern Kantō.

Its convenient location approximately 15 minutes on foot from JR Tsuchiura Station (Joban Line), combined with approximately 45 minutes by limited express from Tokyo/Ueno, has made it an increasingly notable day-trip sword-appreciation destination from the capital region.