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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Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
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Forest fires move faster uphill than downhill.
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The 'King Ranch' in Texas is bigger than the state of Rhode Island.
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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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The Caspian Sea is also classed as the world's largest lake.
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