All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
13
There is a sport called Banzai Skydiving. You throw the parachute out of the airplane first and then jump after it.
17
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
In Japan, watermelons are grown into the shape of a square so they are easier to stack and transport.
108
In 1989, a British company made a laptop with a graphical user interface, a 60 hour battery life, SSD storage, and a touchpad.
12