A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
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Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
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Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
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It's still possible to see the division between East and West Germany due to different light bulbs.
5
Australia's Great Barrier Reef is 1,250 miles long!
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