Mexico City is built on top of an underground resevoir!
47
Check your map! Virginia extends farther west than West Virginia.
67
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The average ice berg weighs 20,000,000 tons!
54
The Sahara desert expands at about 1km per month.
90
Forest fires move faster uphill than downhill.
52
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
