A guest made up to look scary in fake blood reacts to an actor at the "13th Floor" haunted house in Denver...
A guest made up to look scary in fake blood reacts to an actor at the "13th Floor" haunted house in Denver October 19, 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 (UNITED STATES - Tags: SOCIETY)