Haunted "13th Floor"

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A character at the ''13th Floor'' haunted house moves through the crowd in Denver October 18, 2013. America's Haunts, a trade association, estimates there are 1,200 large-scale, for-profit haunted attractions in the U.S. plus another 3,000 haunted houses operated by charities that open for only a day or two every year. The commercial attractions collectively bring in from $300 million to $500 million annually. REUTERS/Rick Wilking