Every year, Alaska has about 5,000 earthquakes.
31
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
The average ice berg weighs 20,000,000 tons!
54
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
Europe is the only continent without a desert.
62
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138