Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Leonardo da Vinci could write with one hand and draw with the other at the same time.
56
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Coffee comes from an edible fruit. The coffee cherry is sweet and tastes like watermelon, rosewater, and hibiscus all at once.
7
London's King's Cross railway station has a platform 9 3/4 in dedication to Harry Potter.
10
There is a superhero supply store in Brooklyn with a cape fitting room that has a wind tunnel. They also sell oxygen gum, bottled chaos and have an invisibility testing center.
18
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22