Mazda is popular for the chance to see the impressive 7km assembly line. English-language tours (90 minutes) are available at 10am weekdays, but it's best to check the website or with the tourist office for the current times. Reservations are required and can be made online or by phone.
The museum is a short walk from JR Mukainada (向洋) Station, two stops from Hiroshima on the San-yō line.