Thrill seekers react to a Chateau Le Fear cast member as he performs at the house-of-horror interactive walk-through show on October 31, 2015 in Londonderry, Northern Ireland. #

David Jiang, wearing a Donald Trump mask, and his girlfriend Kaja Klupinska, wearing a Hillary Clinton mask, left, make their way up Sixth Avenue during the Greenwich Village Halloween Parade, on October 31, 2015, in New York. #

Brazilian Pedro Arruda, 27, poses on a bed prior to spending Halloween night with his mother Monica in Paris' creepy Catacombs amid skulls and bones, in Paris, France, on October 31, 2015. House-sharing company Airbnb has struck a spooky one-off deal with Paris's City Hall to sublet the subterranean ossuaries, the final resting place of six-million bodies, to the winner of a worldwide competition. #

A Chateau Le Fear cast member waits for thrill seekers at the house-of-horror show on October 31, 2015, in Londonderry, Northern Ireland. Twenty actors, in various costumes and personas greet petrified guests as they make their way through the Chateau's elaborate interactive walk-through experience which is part of Derry's Halloween Festival. #

A guest screams as an actor reaches down from his perch in the ceiling at the The Dent Schoolhouse haunted attraction, on October 29, 2015, in Cincinnati. The haunt, owned and operated by Bud Stross and Josh Wells, two high school friends, inhabits a late 19th-century schoolhouse they've renamed The Dent Schoolhouse. #

Al Roker dresses as Charlie Brown from Peanuts during NBC's Today show Halloween costume episode at Rockefeller Plaza on October 30, 2015, in New York. #

Actor Robert Butcher scares a group of children with a bladeless-circular saw at the The Dent Schoolhouse haunted attraction, on October 29, 2015, in Cincinnati. #

Sisters dressed as the Grady twins from the movie The Shining pose for a photo inside their house as they take part in the second edition of Noche del Terror, or “Horror Night”, during Halloween celebrations in the neighborhood of Churriana, near Málaga, Southern Spain, on October 31, 2015. #

A reveler dressed in a Dia de Muertos or "Day of the Dead" theme poses for a photo while taking part in the Greenwich Village Halloween Parade in Manhattan, New York, on October 31, 2015. #

Actor Ashley Wuerderman looks through two-way glass at the USS Nightmare Halloween attraction on the banks of the Ohio River, on October 25, 2015, in Newport, Kentucky, The barge, retrofitted as a floating haunted house, serves the Cincinnati and northern Kentucky area. #

Visitors walk besides witch figures during sunset at the Halloween celebration in the leisure park, BELANTIS, in Leipzig, Germany, on October 31, 2015. #

A man dressed as Twisty from the American Horror Story television show poses at the West Hollywood Halloween Costume Carnaval, which attracts nearly 500,000 people annually, in West Hollywood, California, on October 31, 2015. #