An artist in Iowa named Patrick Acton built a complete model of Hogwarts out of matchsticks.
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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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Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
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There is a fake village with fake shops and restaurants that is actually a care home for elderly dementia sufferers in the Netherlands.
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Some nursing homes in Germany have fake bus stops to keep Alzheimer's patients from wandering away.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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There is a sport called Banzai Skydiving. You throw the parachute out of the airplane first and then jump after it.
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