An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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It's still possible to see the division between East and West Germany due to different light bulbs.
5
More than 25% of the world's forests are in Siberia.
51
Every year, Alaska has about 5,000 earthquakes.
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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.
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Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
14
Mexico City is built on top of an underground resevoir!
47