The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The Atlantic Ocean is saltier than the Pacific Ocean.
54
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
There are approximately three chickens for every human on Earth.
13