The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Israel's Dead Sea is 1,312 feet below sea level.
48
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The Atlantic Ocean is saltier than the Pacific Ocean.
54
There are approximately three chickens for every human on Earth.
13
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
Even Antarctica has an area code. It's 672.
58