The United States does not have an official language.
88
Colorado switched mile marker "420" to "419.99" to stop people from stealing it.
37
According to a 2014 study, 1 in 10 Americans think HTML is a sexually-transmitted disease.
8
Outside of the bedroom, the most common place for adults in the U.S. to have sex is the car.
391
Seven U.S. states are named after sovereigns - four kings and three queens.
5
The United States consumes 25% of all the world's energy.
51

The US national public health institute, Centers for Disease Control and Prevention, has an actual plan in case of zombie invasion.
29