This undated photo released by Netherworld shows a zombie from
the Netherworld Haunted House in Atlanta. Netherworld ranked No. 1
this year on a list of best haunted houses put together by
Travel Trip Halloween Attractions
This undated photo released by Knott's Berry Farm shows their Halloween event "Knott's Annual Halloween Haunt" in Buena Park, Calif. Knott's Berry Farm had one of the first major Halloween events back in the 1970s, but the concept has since grown into an industry, with amusement parks, farms and even historic sites offering weeks of Halloween-themed entertainment leading up to the holiday.
Shea Kelly and Raven Isherwood are frightened by the "Usher" at Halloween Horror Nights XX: Twenty Years of Fear which opened to guests at Universal Orlando Resort Friday.
In this Friday, Sept. 24, 2010 picture provided by Universal
Orlando, visitors are chased by a character with a chainsaw prop at
Halloween Horror Nights XX: Twenty Years of Fear which opened to
guests at Universal Orlando Resort in Orlando, Fla.