In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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There's a swing on the edge of a cliff in Ecuador. It has no safety measures and is called the 'Swing at the End of the World'.
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Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
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There is a superhero supply store in Brooklyn with a cape fitting room that has a wind tunnel. They also sell oxygen gum, bottled chaos and have an invisibility testing center.
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Mathway.com solves all kinds of math homework problems with step by step explanations.
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