Way Off facts · 🏙️ Cities
How many manhole covers are set into the roads of Japan?
15 million
manhole covers
15,000,000 exactly, give or take
Japan has around 15 million manhole covers — with over 12,000 different artistic designs, and dedicated tourists who travel the country collecting photos of them.SOURCEJapan Ground Manhole Association
Scale check: 15 million is roughly all of Greater London.
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