Mexico City is built on top of an underground resevoir!
47
Every year, Alaska has about 5,000 earthquakes.
31
Even Antarctica has an area code. It's 672.
58
The state with the longest coastline in the Continental U.S. is Michigan.
31
The Sahara desert expands at about 1km per month.
90
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61