From San Diego to Baltimore, thousands of haunted houses, dungeons and creepy trails open their gates to crowds of chill-seekers who pay good money to experience crazy characters, realistic animatronics and sheer terror up close and terrifyingly personal. Many of these multimillion-dollar attractions have been in the works since the day after last year's Halloween, and they draw in fright enthusiasts from across the country to experience America's Scariest Halloween Attractions.