Europe is the only continent without a desert.
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Israel's Dead Sea is 1,312 feet below sea level.
48
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The average ice berg weighs 20,000,000 tons!
54