The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
34
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Cuban rescue workers use sniffer rabbits to find people in collapsed buildings.
10