ھاڵۆوین له‌ ئه‌مه‌ریکا

A participant marches in the annual Halloween parade in New York, Oct. 31, 2013.

Pope Francis blows out candles on a birthday cake on the occasion of his 78th birthday as he arrives for his weekly general audience in St. Peter's Square at the Vatican.

David Nickerson, 28, competes dressed as artist Bob Ross during the ZJ Boarding House Halloween Surf Contest in Santa Monica, California, Oct. 26, 2013.

A family walks along Venice Boardwalk in their Halloween costumes in Venice, Los Angeles, California, Oct. 31, 2013.

A woman who drew part of a face on her cheek, stands among the crowd at a costume party to celebrate Halloween in Wuhan, Hubei province, China, Oct. 31, 2013.

Che Ereftheriou, 12, skateboards in his Gingerbread Man Halloween costume in Santa Monica, California, Oct. 31, 2013.

Erin Kunse dresses up as the Mona Lisa painting at the West Hollywood Halloween Costume Carnaval, West Hollywood, California, Oct. 31, 2013.

The South Portico of the White House in Washington, D.C. decorated for Halloween, Oct. 30, 2013.

Betty Dillow helps her grandson with his pumpkin carving in Bristol, Virginia.

A diver in a skeleton costume dives during a media opportunity to mark Halloween at the Sea Life aquarium in Berlin, Oct. 28, 2013.

Children dressed in costumes take part in Manila's Ocean Park annual Trick or Treat event, Philippines.

A couple dressed in costumes ride a motorbike during the "Moto Halloween Party 2013" in Cali, Colombia, Oct. 30, 2013.

U.S. President Barack Obama (center left) and first lady Michelle Obama (center right) give Halloween treats to visiting children at the White House in Washington, D.C., Oct. 31, 2013.

A dog dressed as Zoltar the fortune teller takes part in the 23rd annual Tompkins Square Halloween Dog Parade in New York, Oct. 26, 2013.

An actress in a "good witch" costume walks around ahead of a Halloween reception for children on the South Lawn at the White House in Washington, D.C., Oct. 31, 2013.