An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
Israel's Dead Sea is 1,312 feet below sea level.
48
The average ice berg weighs 20,000,000 tons!
54
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
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10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
Australia's Great Barrier Reef is 1,250 miles long!
45