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Ruine du four à réverbère de Nakaminato
À la fin de la période Edo, Nariaki Tokugawa, le neuvième seigneur du domaine de Mito, a fortement défendu la nécessité d'une défense nationale et a construit la fonderie de canons sous le domaine de Mito en 1857.
Le site est désigné comme un site historique préfectoral.