Sony researchers have developed a refrigerator that only opens when you smile.
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An artist in Iowa named Patrick Acton built a complete model of Hogwarts out of matchsticks.
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In 2012, as phone booths become increasingly obsolete because of mobile phones, a Japanese artist has turned several booths in Osaka into aquariums.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
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You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
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