There's a lake under Antarctica that is 25 million years old called Lake Vostok.
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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
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Israel's Dead Sea is 1,312 feet below sea level.
48
Australia's Great Barrier Reef is 1,250 miles long!
45
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41