During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The average American spends a third of their overall time online playing games and using social networks.
298
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 does not have an official language.
88
You can't plow a cotton field with an elephant in North Carolina.
330
The first semi-permanent settlements appeared in Florida around 5000 B.C.
10