In the US, people can be rejected from joining the police force if they are too intelligent.
45
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The US national public health institute, Centers for Disease Control and Prevention, has an actual plan in case of zombie invasion.
29
The United States consumes 25% of all the world's energy.
51
Each year, around 24,000 Americans are bitten by rats!
65
Seven U.S. states are named after sovereigns - four kings and three queens.
5