One cubic mile of seawater contains about 50 pounds of gold.
79
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
Australia's Great Barrier Reef is 1,250 miles long!
45
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
There are approximately three chickens for every human on Earth.
13
Europe is the only continent without a desert.
62