Off the rail topic, when you are in Hiroshima, try to find a place that serves Okonomiyaki particularly the simpler style where you cook it yourself on a hot griddle. Somewhere in Hiroshima, I think near here is a building with a boring table service okonomiyaki restaurant in the ground floor and a set of smaller DIY ones on the 5th floor, take the lift up.

When we got up there, there were about 5 different places. One was rammed full of salarymen, one was about 3/4 full of people, and the rest were pretty deserted. We went to the 3/4 full one since there had to be some positive reason why it was more popular. The proprietor looked surprised to see foreigners but after a moment's thought he dug out an English menu from the distant past ("1994 Friendship Games") to help us out. He was very welcoming. After a bit ofhandwaving we got 2x okonomiyaki, water, and beer. It was very tasty and felt like a genuinely local experience.

Highly recommended.