The Niagara Falls moves upstream at an average rate of about 295ft a century!
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Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
The water of the Antarctica is so cold that nothing can rot there.
334
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
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The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The average ice berg weighs 20,000,000 tons!
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
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