Australia's Great Barrier Reef is 1,250 miles long!
45
The average ice berg weighs 20,000,000 tons!
54
In 1850, only 8% of the people in California were women.
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One cubic mile of seawater contains about 50 pounds of gold.
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The Caspian Sea is also classed as the world's largest lake.
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Israel's Dead Sea is 1,312 feet below sea level.
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The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
The Sahara desert expands at about 1km per month.
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