Australia's Great Barrier Reef is 1,250 miles long!
45
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Every year, Alaska has about 5,000 earthquakes.
31
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
In 1850, only 8% of the people in California were women.
0
The state with the longest coastline in the Continental U.S. is Michigan.
31
Mexico City is built on top of an underground resevoir!
47
There are more than 50,000 earthquakes throughout the world every year!
47