Australia's Great Barrier Reef is 1,250 miles long!
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
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There are more than 50,000 earthquakes throughout the world every year!
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In 1850, only 8% of the people in California were women.
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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.
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If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
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An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
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