In this picture you can see the lanterns that hang by the path that leads to the Hiroshima Castle.
If you are interested in Museums, there are some in Hiroshima you can visit: the Hiroshima City Museum of Contemporary Art, with Japanese and western art; the Hiroshima Museum of Art, with European art; the Hiroshima Prefecture Museum of Art, with modern European art. Outside of Hiroshima is the Mazda Museum, which offers tours in English and Japanese.