The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
Japanese engineers were asked to redesign the front end of the Bullet Train because it carried enough speed to create a sonic boom whenever it exited a tunnel. Residents could feel the blast from miles away.
11
Japan is the largest exporter of frog's legs.
114
In Japan, more adult diapers are sold than baby diapers.
50