An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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Even Antarctica has an area code. It's 672.
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The average ice berg weighs 20,000,000 tons!
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Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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Mexico City is built on top of an underground resevoir!
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The Caspian Sea is also classed as the world's largest lake.
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