Manholes MANHOLEA manhole cover in Saijo town photo: Junko Nagata © Japanbyweb.com A manhole cover in Saijo town in the eastern area of Hiroshima Prefecture. Saijo is famed for its sake production.Continue the Travel Mailbox and manhole at Kappabashi featuring Sarazanmai Manhole cover in Oarai town, Ibaraki Prefecture Trains on manhole cover in Poppo Town Wisteria flower on manhole Ikaho Onsen manhole cover Μanhole cover in Chiba City Astro Boy-themed manhole covers in Tokyo’s Ochanomizu Yume-Ume-chan A manhole cover in Nagaoka Kabuki on a manhole cover in Asakusa