The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
Forest fires move faster uphill than downhill.
52
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
The Sahara desert expands at about 1km per month.
90
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18