The average ice berg weighs 20,000,000 tons!
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The Caspian Sea is also classed as the world's largest lake.
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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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An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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The state of Florida is bigger than England!
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Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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The city of Houston, Texas is built on a swamp and is slowly sinking!
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