Wherever you are in Japan, there's sightseeing to be done on the street. Literally.
Manhole covers are used as works of public art all over Japan. Patterns and even painted colors are used to create local images that can be seen by locals and visitors alike.
The variety of images is impressive. Nature makes a big appearance, as trees and birds are especially common throughout the nation's prefectures. Cherry blossom trees are especially frequent. Also appearing are dragonflies, deer, cranes, and other animals that are either locally common or well-known in the national mythology.
There's also a high number of firefighter-themed manhole covers. Those covers give firefighters easy access to water in case of emergencies.
via Kuriositas
Thanks to OpenCage for the cover image!