In Dubai, there’s a fridge magnet that orders a pizza delivered to your door.
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Passengers on the Beijing subway can pay with plastic bottles.
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In 2011, a couple bought a box of textbooks for $10. Inside, they found a 25-cent bill signed by the president of the Republic of Texas, Sam Houston, and subsequently sold it for $63,250.
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Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
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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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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