largest city: Hiroshima / prefectures: Okayama, Hiroshima, Yamaguchi, Tottori and Shimane
Not famous as Arashiyama bridge in Kyoto, but Kintaikyo bridge in Iwakuni, Yamaguchi prefecture is one of the finest bridges in Japan and you have to pay a toll to cross this pedestrian bridge.
Miyajima island is not the only island which should visit in Hiroshima prefecture. Sensujima island, lying offshore of Tomonoura in Fukuyama is a wonderful place to visit.
Looking for a place for cycling? You can start your cycling tour from Onomichi, Hiroshima prefecture via Shinamani highway ending at Imabari, Ehime prefecture on Shikoku.
As like going to northern Scandinavia to watch northern lights(Aurora), you may be able to see a stunning view of Bitchu-Matsuyama castle on top of Mt.Gyagyu in Takahashi, Okayama prefecture surrounded by clouds.