The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
Japan is the largest exporter of frog's legs.
114
In Japan, more adult diapers are sold than baby diapers.
50
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
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