Craniopagus conjoined twins Krista and Tatiana can see through each other’s eyes.
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The Rain Man (Laurence Kim Peek) was the only savant known to science who could read two pages of a book simultaneously - one with each eye.
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There's a regenerative candle that creates a new candle as it melts.
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In Montreal, there's a bus stop with swings that play musical notes when you swing on them.
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After coming across a "very sweet" homeless man from Jamaica named Michael on a night out, Londoner Jenny Baker took to Twitter, and within hours, using the hashtag #getmichaelhome, had raised thousands of pounds so that he could return home to Jamaica where he said he would be "happy again".
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