If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
More than 25% of the world's forests are in Siberia.
51
Every year, Alaska has about 5,000 earthquakes.
31
The state with the longest coastline in the Continental U.S. is Michigan.
31
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243