PETALUMA, CA - OCTOBER 28: Pumpkins are seen at Petaluma Pumpkin Patch on October 28, 2011 in Petaluma, California. According to a study by the National Retail Federation, Americans will spend nearly $6.9 billion on Halloween costumes, decorations and candy this year.   Justin Sullivan/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS &; TELEVISION USE ONLY ==

Esta noche se celebra la llamada noche de las burjas, la velada que precede al día de todos los santos, la noche de halloween... Una noche de oscura tradición pagana que en la actualidad tiene mucho seguimiento en los paises anglosajones, Estados Unidos y gran parte de sudamérica. Esta noche pasearán los niños y no tan niños de puerta en puerta preguntando "¿Truco o trato?" y recibiendo golosinas a cambio de la indulgencia de los chicos disfrazados de personajes aterradores. En España este ritual aun no está muy instaurado y somos más de ir a los cementerios a poner flores y comer huesos de santo... Pero esta noche se verá a muchos jóvenes paseandose disfrazados de bar en bar. En cualquier caso recomiendo desde la Mesa de Luz tener cuidado esta noche mágica en la que los muertos se levantan de sus tumbas y los espectros se manifiestan de manera terrorífica.

An artist dressed as a moor man walks between crosses during a Halloween celebration in the leisure park 'BELANTIS', the largest theme park in eastern Germany, in Leipzig, Germany, on Monday, Oct. 31, 2011. The theme park stages a Halloween party with creepy surprises for the visitors. (AP Photo/Jens Meyer)

A zombie dressed man poses for a photo in Caracas on October 29, 2011.  About 300 fans of zombies marched on Saturday night looking for fun on the Halloween eve.   AFP Photo / Leo RAMIREZ

A zombie dressed man poses for a photo in Caracas on October 29, 2011.  About 300 fans of zombies marched on Saturday night looking for fun on the Halloween eve.   AFP Photo / Leo RAMIREZ

A woman makes her choice from a display of pumpkins at a pumpkin patch in Culver City on October 28, 2011 in southern California, ahead of Halloween which falls every year on October 31. Halloween is especially popular with children due to activities such as trick or treating, dressing up in costumes and carving pumpkins to make jack-o'-lanterns. AFP PHOTO / Frederic J. BROWN

A customers looks at snow covered Halloween pumpkins at a farmers market in the town of Westminster, MD, October 29, 2011. An unusually cold weather hit the North East part of the United States a few days before Halloween.  AFP PHOTO/ MLADEN ANTONOV

CHICAGO, IL - OCTOBER 28: Halloween masks of Muammar Gaddafi, Osama bin Laden, and Saddam Hussein are offered for sale at Fantasy Costumes on October 28, 2011 in Chicago, Illinois. The store, which had long lines at the registers at 4 AM this morning, is open around the clock through Halloween to help keep up with customer demand. Retailers nationwide are expecting record sales for Halloween merchandise this year with shoppers spending close to $7 billion dollars to celebrate the holiday.   Scott Olson/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS &; TELEVISION USE ONLY ==

MIAMI BEACH, FL - OCTOBER 21: Charlie Lucas tries on a snow white Costume at the Halloween MegaStore Miami Beach on October 21, 2011 in Miami Beach, Florida. The megastore is a temporary location for the store which opened for the holiday to sell costumes, masks and other items to people needing to dress up for the evening of October 31 when costumed people around the world observe the day.   Joe Raedle/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS &; TELEVISION USE ONLY ==

People dressed up as zombies during a Halloween Eve Party in Belgrade on October 30, 2011.  Halloween is based on the Celtic festival of Samhain and the ancient Celts believed the border between this world and the otherworld became thin on that night, allowing spirits to pass through.AFP PHOTO / ANDREJ ISAKOVIC

A woman dressed up as a Barbie doll poses during a Halloween Eve Party in Belgrade on October 30, 2011. Halloween is based on the Celtic festival of Samhain and the ancient Celts believed the border between this world and the otherworld became thin on that night, allowing spirits to pass through.AFP PHOTO / ANDREJ ISAKOVIC

A Thai boy looks at Halloween decorations at a shopping mall in Bangkok, Thailand, Sunday, Oct. 30, 2011. On one side of Bangkok, you'll find the victims of Thailand's worst flooding in half a century. But just a few miles away, you'll find something else entirely: well-heeled shoppers perusing bustling malls decorated with newly-hung Halloween decorations, couples sipping espresso in the air-conditioned comfort of ultra-chic cafes. (AP Photo/Sakchai Lalit)

A child dresses up in a costume in Hong Kong on Halloween, Monday, Oct. 31, 2011. (AP Photo/Vincent Yu)

CAR08. CARACAS (VENEZUELA) 29/10/2011.- Una mujer disfrazada de zombie recorre hoy, sábado 29 de octubre de 2011, una céntrica plaza de Caracas (Venezuela), donde un grupo de personas se reunieron para festejar Halloween. EFE/ Boris Vergara

Carved pumpkins are seen on offer at a roadside stall for Halloween near Warsaw, Poland, Monday, Oct. 31, 2011. Halloween is a new tradition taking root in Poland, a predominantly Catholic nation where Nov. 1 is a national holiday of All Saint's Day and is dedicated to visiting family graves. (AP Photo/Czarek Sokolowski)

Silas, a German shorthaired pointer owned by Heidi Wormser of Chagrin Falls, Ohio, sits on the couch in the front window of his home, decorated for Halloween, on Saturday, Oct. 29, 2011. Halloween is on Monday.  (AP Photo/Amy Sancetta)

A girl models her costume during the kids costume competition at the "Scaredy Cats and Dogs" Halloween fund-raising event at a mall in Quezon City, Metro Manila, October 23, 2011. Some 100 pets participated in the event to raise funds for the Philippine Animal Welfare Society (PAWS) Animal Rehabilitation Center, a temporary shelter for more than 100 dogs and cats which were either abandoned or rescued from cruelty or neglect.  REUTERS/Cheryl Ravelo (PHILIPPINES - Tags: SOCIETY)

A zombie dressed woman stops a car in a street in Caracas on October 29, 2011. About 300 fans of zombies marched on Saturday night looking for fun on the Halloween eve.   AFP Photo / Leo RAMIREZ

Carved pumpkins stands on a ledge in front of house ahead of Halloween in Montague, Massachusetts, October 22, 2011. Halloween is an annual holiday observed on October 31, which commonly includes activities such as trick-or-treating, attending costume parties, carving pumpkins, visiting haunted attractions, or telling scary stories.

A boy models his monster costume during the kids costume competition at the "Scaredy Cats and Dogs" Halloween fund-raising event at a mall in Quezon City, Metro Manila, October 23, 2011. Some 100 pets participated in the event to raise funds for the Philippine Animal Welfare Society (PAWS) Animal Rehabilitation Center, a temporary shelter for more than 100 dogs and cats which were either abandoned or rescued from cruelty or neglect.  REUTERS/Cheryl Ravelo (PHILIPPINES - Tags: SOCIETY)

Haunt actor Gus Maurer performs at the Spooky Ranch in Columbia Station, Ohio, in this handout picture taken October 2010. A stalled economy hasn't spooked Americans out of enjoying Halloween. Nearly three-quarters of U.S. consumers plan to celebrate, but will spend less this year on costumes and candy. Picture taken October 2010.      REUTERS/Derek Vitas/Handout  (UNITED STATES - Tags: SOCIETY BUSINESS) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS

HWO09- WASHINGTON (EEUU), 29/10/2011.- Niños forman filas con sus dulces recibidos hoy, sábado 29 de octubre de 2011, en la Casa Blanca, Washington, DC. El presidente de EE.UU., Barack Obama, y su esposa, Michelle, ofrecen una fiesta de Halloween a hijos de militares y niños de la vecindad en la Casa Blanca, decorada para la ocasión con calabazas y telarañas. EFE/BRENDAN SMIALOWSKI / POOL

Zombie dressed people walk in a main street in Caracas on October 29, 2011.  About 300 fans of zombies marched on Saturday night looking for fun on the Halloween eve.   AFP Photo / Leo RAMIREZ

TO01. TOLEDO, 29/10/2011.- Las monjas de los conventos toledanos se resisten a dejar paso a la fiesta anglosajona de Halloween y durante estos dí­as ofrecen cambiar las terroríficas calabazas por los tradicionales y deliciosos huesos de santo que ellas mismas elaboran y venden. EFE/Ismael Herrero