In 1518, a "dancing plague" struck Strasbourg, Alsace, whereby hundreds of people danced fervently in the streets over the period of a month. Some suffered heart attacks or strokes, and many others died from sheer exhaustion. It remains unexplained.
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In downtown Churchill, Manitoba, it's illegal to lock your car doors in case someone needs to escape from a polar bear.
15
A Missouri family sued the previous owners of a house that they had just bought after Brown Recluse Spiders "started bleeding out of the walls." An expert came in and estimated that the house was infested with 4,000 – 5,000 of the spiders.
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There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
The most expensive license plate is the number '1', bought by an Abu Dhabi businessman - costing a staggering $14.3 million!
3