The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
There are more than 50,000 earthquakes throughout the world every year!
47
Check your map! Virginia extends farther west than West Virginia.
67
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
The Amazon rainforest produces more than 20% the world's oxygen supply.
182