A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
One cubic mile of seawater contains about 50 pounds of gold.
79
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
The state of Florida is bigger than England!
74