The Niagara Falls moves upstream at an average rate of about 295ft a century!
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There's a lake under Antarctica that is 25 million years old called Lake Vostok.
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It's still possible to see the division between East and West Germany due to different light bulbs.
5
The state with the longest coastline in the Continental U.S. is Michigan.
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Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
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