Elephants are among the most emotional creatures in the world - they have even been known to rescue other animals, such as trapped dogs.
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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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In 2012, redditor laporkenstein forged his own wedding ring out of a Gibeon meteorite.
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There's a café in France which charges €7 for a coffee to rude customers and €1.40 to people who talk politely to staff.
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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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