One cubic mile of seawater contains about 50 pounds of gold.
79
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
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
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55