Thomas Edison designed a helicopter that would work with gunpowder. It ended up blowing up and also blew up his factory. See more

There are more bacteria in your mouth than the human population of the U.S.A. and Canada combined. See more

You can be imprisoned for not voting in Fiji, Chile and Egypt - at least in theory. See more

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

It took approximately 2.5 million blocks to build the Pyramid of Giza, which is one of the Great Pyramids. See more

The USA has more personal computers than the next 7 countries combined. See more

Toxic house plants poison more children than household chemicals. See more

China uses 45 billion chopsticks per year and 25 million trees are chopped down to make 'em. See more

Most marine fish can survive in a tank filled with human blood. See more