The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Check your map! Virginia extends farther west than West Virginia.
67
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
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
The state with the longest coastline in the Continental U.S. is Michigan.
31
There are more than 50,000 earthquakes throughout the world every year!
47