Clay "caganers" representing Spanish Prime Minister Mariano Rajoy (2nd L), Podemos's candidate Pablo Iglesias (R), Socialist Party (PSOE) leader Pedro Sanchez (2nd R) and Ciudadanos party leader Albert Rivera (L) are seen on display at the Santa Llucia Christmas market in central Barcelona, Spain, December 16, 2015. Catalans hide “caganers” or defecators, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. The “caganers”, which symbolise defecation and fertilization of the earth, are believed to bring prosperity and luck for the coming year. (Photo by Albert Gea/Reuters)

A house and garden is illuminated ahead of Christmas in Olching near Munich December 11, 2014. The house is decorated with more than 30,000 lights. Every year hundreds of houses across Germany are decorated by their owners with lights ahead of Christmas. (Photo by Michaela Rehle/Reuters)

Inmates dressed as Santa Claus prepare to participate in an event ahead of Christmas celebrations at Santa Monica female prison in Lima December 19, 2014. (Photo by Enrique Castro-Mendivil/Reuters)

St Mary's Cathedral is illuminated as part of a Christmas lights display in celebration of Christmas on December 19, 2014 in Sydney, Australia. (Photo by Brendon Thorne/Getty Images)

Farmhand Beatrice Jasiewicz (L) looks on as a colleague carries an injured goose on an open field at the Oekohof Kuhhorst organic farm near Berlin on November 24, 2011 in Kuhhorst, Germany. Goose is the traditional Christmas Eve dinner in Germany. (Photo by Sean Gallup/Getty Images)

Indians pause to pray after lighting candles as they and other Christians gather to celebrate Christmas at the Sacred Heart Cathedral on Christmas Day, December 25, 2011 in New Delhi, India. (Photo by Daniel Berehulak /Getty Images)

Neapolitan Christmas Nativity figurines on display at “Maestri Ferrigno”, which opened in 1836, at Via San Gregorio Armeno on December 14, 2011 in Naples, Italy. Via San Gregorio Armeno, Christmas Alley as it is known, is considered by many to be the world capital of the Nativity and home to the artisans and merchants who specialize in the art and the craft of the Neapolitan Presepe. Over the Christmas period, more than half a million tourists come to see the shops. (Photo by Franco Origlia/Getty Images)

A Chinese girl peeps at Santa at a shopping center on Christmas Eve December 24, 2011 in Beijing, China. Though Christmas is not officially celebrated in China, the holiday is becoming increasingly popular as Chinese adopt more Western ideas and festivals. (Photo by Feng Li/Getty Images)