At YouTube Headquarters, employees can either take the elevator, stairs or slide.
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Leonardo Da Vinci made a robotic lion in 1515 that would walk, sway, open its mouth and move its tail - it even had a compartment that opened to present flowers.
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Mico headphones read your brainwaves and select music based on your state of mind.
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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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