Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
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One cubic mile of seawater contains about 50 pounds of gold.
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
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The Caspian Sea is also classed as the world's largest lake.
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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.
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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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Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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