The 1893 Chicago World's Fair was a triumph of architecture and technology that offered 27 million amazed visitors a preview of 20th century. But a mere mile down the road from the fair, one man, H.H. Holmes, was making history in a far more sinister way. He had built a hotel designed for murder, which would later be known as "The Murder Castle." See more in Season 1, Episode 3, "Murder Castle."

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From mysterious and supernatural occurrences, to extraordinary stories and investigations of the unknown, The UnXplained Zone is your portal to the paranormal. Follow the evidence, uncover the cover-ups, and discover what lies behind mankind's greatest mysteries and the world's strangest phenomenons.

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