The exact cause of death and burial site of Genghis Khan is unknown, because all of the 2000 funeral guests and 800 soldiers were killed in order to preserve the secret.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Andre the Giant had surgery, but the doctors couldn't figure out how much anaesthesia to use due to his size. Instead, they used Andre's claim that "it usually takes two liters of vodka just to make me feel warm inside" as their guide.
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There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
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Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
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