Israel's Dead Sea is 1,312 feet below sea level.
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The North Atlantic gets 2.5 centimetres (1in) wider every year.
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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It takes a drop of ocean water more than 1,000 years to circulate around the world.
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Check your map! Virginia extends farther west than West Virginia.
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An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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Australia's Great Barrier Reef is 1,250 miles long!
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