Check your map! Virginia extends farther west than West Virginia.
67
Mexico City is built on top of an underground resevoir!
47
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Forest fires move faster uphill than downhill.
52
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
Australia's Great Barrier Reef is 1,250 miles long!
45