There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
There's a road in Lancaster, CA that has grooves carved in such a way that when you drive over them at 55 MPH, they will play a part of Rossini's "The William Tell Overture."
16
Genghis Khan exempted the poor and clergy from taxes, encouraged literacy, and established free religion, leading many peoples to join his empire before they were even conquered.
28
Mico headphones read your brainwaves and select music based on your state of mind.
7
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17