One cubic mile of seawater contains about 50 pounds of gold.
79
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
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
It's still possible to see the division between East and West Germany due to different light bulbs.
5
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
The water of the Antarctica is so cold that nothing can rot there.
334
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62