The city of Houston, Texas is built on a swamp and is slowly sinking!
89
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Forest fires move faster uphill than downhill.
52
It's still possible to see the division between East and West Germany due to different light bulbs.
5
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243