Photo of a decorated manhole cover in Nagano
Photo by jpellgen (flickr)

Host of the 1998 Winter Olympics, Nagano, Japan has a name that’s tough to track down. According to both Placenames Of The World and namelab it is derived from the Japanese words naga meaning “long” and no meaning “field.” I haven’t been to Nagano, but a quick Google Image Search reveals that the city itself does seem to be in a flat area.