Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
Colorado switched mile marker "420" to "419.99" to stop people from stealing it.
37
American school children rank 25th in math and 21st in science out of the top 30 developed countries, but ranked 1st in confidence that they outperformed everyone else.
7
The Statue of Liberty is made out of copper. When originally built, it looked like a shiny new penny!
10