The United States has paved enough roads to circle the Earth over 150 times.
72
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
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
In 1700s, the deer skin was a common medium of exchange between the trading settlers and the native Red Indians in America. This is how a buck became a slang for a dollar.
28
The United States does not have an official language.
88
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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Saint Augustine, Florida, is the oldest European settlement in North America.
55