The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
In Japan, it is tradition for husbands to get a monthly allowance from their wives.
6
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
Japanese schools do not have proms.
-21
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7