Travel and art can go hand in hand. Especially this way. In 1985 a high ranking government worker had the idea to let municipalities design their own anhole covers. After a few design contests and publications, things went quickly and municipalities were soon competing with each other to see who could come up with the best designs. Today you can find over 6000 of those artistic covers spread throughout Japan.
One photographer, S. Morita, has travelled around Japan for several years to photograph these works of art. You can see the resulting collection on Flickr.