The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
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The average ice berg weighs 20,000,000 tons!
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One cubic mile of seawater contains about 50 pounds of gold.
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There's a lake under Antarctica that is 25 million years old called Lake Vostok.
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The Atlantic Ocean is saltier than the Pacific Ocean.
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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There are approximately three chickens for every human on Earth.
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The Caspian Sea is also classed as the world's largest lake.
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