Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
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Mathway.com solves all kinds of math homework problems with step by step explanations.
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The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
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There's a regenerative candle that creates a new candle as it melts.
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