The city of Houston, Texas is built on a swamp and is slowly sinking!
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The warmest temperature ever recorded on Antarctica was 3 degrees F.
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Check your map! Virginia extends farther west than West Virginia.
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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 state of Florida is bigger than England!
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One cubic mile of seawater contains about 50 pounds of gold.
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Israel's Dead Sea is 1,312 feet below sea level.
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