The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
In Japan, gambling is illegal. However, they circumvent the law by giving out prizes instead of cash, which the winner can then sell back to the establishment for cash.
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