The Caspian Sea is also classed as the world's largest lake.
52
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
Forest fires move faster uphill than downhill.
52
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25