Besides its tenshu, tsuke-yagura (connecting tower), tamon yagura (hall turrets), therearefive structures designated nationalimportantcultural properties including yagura and mon from the Azuchi Momoyama through the Edo Period.
In 1951seven structures of the castle including tenshu were designated as Important Cultural Property, and among them two structures (tenshu, tsuke-yagura (Connecting Tower) and Tamon yagura (hall turrets)) were designated as National Treasure.