Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
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Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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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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More than 25% of the world's forests are in Siberia.
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Every year, Alaska has about 5,000 earthquakes.
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