Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
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
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The city of Houston, Texas is built on a swamp and is slowly sinking!
89