Every year, Alaska has about 5,000 earthquakes.
31
Check your map! Virginia extends farther west than West Virginia.
67
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The state with the longest coastline in the Continental U.S. is Michigan.
31
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The city of Houston, Texas is built on a swamp and is slowly sinking!
89