Inside the castle is a historical library with Hiroshima's development and Samurai family culture as its theme. Photographs and videos outline the history of Hiroshima from ancient times to the construction of Hiroshima City and even the Meiji era. Apart from the exhibition of Hiroshima culture, there is also a model exhibition of real warriors and merchants'houses. On the third and fourth floors, there are swords exhibition rooms and special theme exhibition rooms respectively, and on the fifth floor, there are lookouts. Ticket Price 370 Ran