Passengers on the Beijing subway can pay with plastic bottles.
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The world's tallest snowman was created in Bethel, Maine in 2008. It measured in at 122 feet / 1 inch and weighed 13,000,000 lbs.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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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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Scientists have developed a 'hangover-free' beer that has electrolytes, making it more hydrating and refreshing.
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Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
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