Hiroshima prefecture has a couple of world heritage sites, Atomic Bomb Dome and Itsukushima shrine. And you can explore both of them on this tour.
Visit the Atomic Bomb Dome (Hiroshima Memorial Park) located in Hiroshima Peace Memorial Park. It tells how miserable the destructive effects of nuclear warfare is and how important peace is. 

Explore Itsukushima Shrine (Miyajima Island), a small island in Hiroshima Prefecture and famous for a historic site of shinto. On this island, there is a Isukushima shrine known for one of the most scenic spot in Japan. You can enjoy beautiful red shrine as if it is floating over the middle of the sea.