Manholes MANHOLEA manhole in Sendagaya photo: Junko Nagata © Japanbyweb.com A manhole with Hinata Kawamoto, a character from “March Comes in Like a Lion” manga series by Chica Umino. In Sendagaya, Tokyo. 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