There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
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
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The Caspian Sea is also classed as the world's largest lake.
52
The state with the longest coastline in the Continental U.S. is Michigan.
31
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138