A Native American tribe in South Dakota collects bottle caps left by campers, using them as currency. Several banks in the area now recognize the caps as legal tender.
225
The United States consumes 25% of all the world's energy.
51
Teddy bears were named after U.S. President Theodore 'Teddy' Roosevelt.
23
Each year, around 24,000 Americans are bitten by rats!
65
During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
In the US, it is legal for women to be publicly topless in 33 states. Male toplessness became legal in 1936.
4
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14