In 1968, a car driven by bank employees was pulled over by a motorcycle cop claiming the car had been rigged with a bomb. The cop got under the car to “defuse” the device. When the car started to smoke, everybody ran. Then the “cop” just drove the car away. The 300,000,000 Yen robbery remains unsolved to this day.
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There are pictures of Knights fighting Snails in old Medieval manuscripts - and nobody knows why.
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A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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