Manholes IBARAKI, MANHOLE, MASCOTManhole cover: Mairyu the dragon Junko Nagata ©Japanbyweb.com Mairyu the dragon, mascot of Ryugasaki City (Ibaraki Prefecture), on a manhole cover at the east exit of Ryugasaki Station. Junko Nagata ©Japanbyweb.comContinue the Travel Araippe mascot on manhole cover in Oarai Town Manholes with official mascot of Fujisawa City Manhole cover in Oarai town, Ibaraki Prefecture Manhole cover in Ushiku City Student artwork on manhole cover in Ushiku City, Ibaraki Manhole cover: Chichibu Manhole cover: Center Square (Kawasaki) Manhole cover: South Park (Kawasaki) Ueda City manhole cover Manhole cover: Mt Akagi Hill Climb Manhole: Kiryu City Maebashi, Gunma: Poetry on manhole cover