Forest fires move faster uphill than downhill.
52
It's still possible to see the division between East and West Germany due to different light bulbs.
5
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
In 1850, only 8% of the people in California were women.
0
The state with the longest coastline in the Continental U.S. is Michigan.
31
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119