Tsunamis ( tidal waves ) travel as fast as jet planes.
97
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
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
80% of millionaires drive used cars.
68
You can tape a small mirror onto a cone speaker, play music and shine a laser on to the mirror and the reflection will look like a laser light show on your wall.
102
There was once an undersea post office in the Bahamas.
241
There are more telephones than people in Washington, D.C.
121