"Haunted House" magazine has ranked its 13 best individual haunted houses and its top five amusement park haunted events for 2006. Third on the list of amusement park events is Universal Orlando's 16th annual Halloween Horror Nights. The event runs for 19 nights, after regular park hours, from Sept. 29-Oct. 31. This year's theme features the return of several of the characters associated with previous events.