Designer manhole covers first appeared in Japan in 1977 with the design of a happy fish swimming in water cleaned by the sewer system. That cover drew a lot of attention prompting them to switch to color covers in 1981, the colors were florescent allowing the covers to be a guide at night plus helping firefighters at night time fires. Now the covers are produced to be region specific and have become a tourist attraction with some having QR codes that tell the story behind the scene pictured on the manhole cover. Such creative genius for an otherwise mundane item.
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