The Amazon rainforest produces more than 20% the world's oxygen supply.
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The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
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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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The Caspian Sea is also classed as the world's largest lake.
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If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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