After the worst mass shooting in Australia's history, new gun control laws dropped their firearm homicide rate by 42% over the next seven years. See more

Yemen, a quasi-failed state torn by civil war, had 54.8 guns per 100 people in 2007. See more

Topless saleswomen are legal in Liverpool, England, but only in tropical fish stores. See more

In 10 minutes, a hurricane releases more energy than all of the world's nuclear weapons combined. See more

Acorns were used as a coffee substitute during the American Civil War. See more

Each card in a deck represents a king from history: Spades- King David, Hearts- Charlemagne, Clubs-Alexander the Great, Diamonds- Julius Caesar See more

Topless saleswomen are legal in Liverpool, England - but only in tropical fish stores. (But of course!) See more

The average person falls asleep in seven minutes. See more