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Beneath the pine and birch forest of northern Germany lies Unicorn Cave, named for the bones found by medieval treasure hunters.

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If you've ever waited for a late subway train, you most certainly have stared into dark railways, maybe wondering what on earth might live in there.

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Simone Biles, already the most decorated gymnast in history, has surpassed expectations again. On Saturday, she performed a move considered so dangerous that no other woman has ever attempted it in competition.

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