A historic site park that has maintained and preserved about 300,000 square meters, including the Jiraku-ji Temple, the Nanatsuzuka Kofun Group, one of the largest in the Chugoku region. Inside the park are the Gobara Ancient House and the Important Cultural Property Former Mano Family House, and the Hiroshima Prefectural Historical and Folklore Museum, which collects materials related to archeology and folklore (fee 200 yen, hours 9-16:30, New Year holidays, closed on Mondays * Open for public holidays, closed on the first weekday after the next day). The permanent exhibition displays materials from primitive and ancient Japan, representing Hiroshima Prefecture, as well as items from the important cultural property Yaya Kofun.