There's a lake under Antarctica that is 25 million years old called Lake Vostok.
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
Mexico City is built on top of an underground resevoir!
47