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 largest hotel suite in the world is located 22 stories under the surface in the Grand Canyon Caverns. One night for two people in this 65 million year old cave is $700.
4
The average American spends a third of their overall time online playing games and using social networks.
298
The first semi-permanent settlements appeared in Florida around 5000 B.C.
10
Colorado switched mile marker "420" to "419.99" to stop people from stealing it.
37
In 1963, the US Military created an artificial ring around Earth, similar to that of the planet Saturn. The ring was made of copper needles and was used for worldwide communications in the case that the Soviets disabled all other methods of communication.
26
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
