Housed herein are some 4,000 valuable items – fine arts and crafts, historical materials, armory, Noh masks, musical instruments etc., mostly used by the top figures of the Heike Clan, a dominant politico-military family in the feudal days. Among them are about 130 pieces of national treasures, important cultural assets, including 32 volumes of Heike Clan’s Buddhist sutras. On display are part of the collection and a reproduction of the sutras.
The large root at the entrance is a part of the roots of the camphor which was used for the main pillar of O-torii Gate when the gate was repaired in 1951.