The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
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The North Atlantic gets 2.5 centimetres (1in) wider every year.
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Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
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The state with the longest coastline in the Continental U.S. is Michigan.
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Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
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The average ice berg weighs 20,000,000 tons!
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