It is not possible to fold a piece of paper in half more than seven times.
The presidents on Mount Rushmore are George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt.
(see U.S. Presidents)
Beavers front teeth have a tough orange coating that protects them from being broken or chipped while cutting wood.
The highest NFL team score is 72, by the Washington Redskins against the New York Giants (41) at Washington, on November 27, 1966.
The Yo-Yo was invented in ancient Greece over 3,000 years ago.
America's first minimum wage began at 25 cents an hour back in 1938.
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Vermont, Alaska, Hawaii and Maine are the only states in the U.S. that do not allow billboards.
(see U.S. States)
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New York was the last state to put photographs on driver's licenses in 1984.
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The Empire State Building bas 6,400 windows.
(see Worlds Tallest Buildings)
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It is considered an insult to tip at a restaurant in Iceland.
(see Flags of the World)