There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
Mexico City is built on top of an underground resevoir!
47
The Sahara desert expands at about 1km per month.
90
The Atlantic Ocean is saltier than the Pacific Ocean.
54
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
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