A merry-go-round turns as the Christmas tree is illuminated after the opening of the traditional Christmas market in Frankfurt, Germany, Monday, November 26, 2018. (Photo by Michael Probst/AP Photo)





People watch the Christmas tree lighting at Rockefeller Center in the Manhattan borough of New York City, New York, U.S., November 28, 2018. (Photo by Eduardo Munoz/Reuters)





A woman poses next to a lit up sculpture of a lion as it is part of the Christmas lights display at ZSL London Zoo in London, UK on November 23, 2018. (Photo by Pete Summers/PA Wire)





A person takes selfies on the Champs Elysees avenue, in Paris, on November 22, 2018, after the launching of the Champs Elysees Christmas lights. (Photo by Alain Jocard/AFP Photo)





People take pictures during the lighting ceremony of the Christmas illuminations and Swarovski Christmas Tree in Milan, Italy, 04 December 2018. (Photo by Daniel Dal Zennaro/EPA/EFE)





A house decorated with Christmas lights in Hampshire, England on December 5, 2018. A group of residents on the street all decorate their homes to raise money for local charities. (Photo by Andrew Matthews/PA Wire Press Association)





Fireworks light the sky as a Christmas is lit in Lebanon's capital Beirut on December 3, 2018. (Photo by Anwar Amro/AFP Photo)





Christmas lights are displayed on houses in Trinity Close in Burnham-on-Sea on December 6, 2018 in Somerset, England. For over eleven years, the residents of Trinity Close, dubbed 'Britains most festive street have decorated their homes and gardens with more than a 100,000 colourful Christmas lights. Last year, the residents raised a record sum of £13,329 for local charities and since starting the festive display have raised over £85,000 for charitable causes. The display will be lit every night until early January. (Photo by Matt Cardy/Getty Images)





A woman takes a picture inside a Christmas tree at Comercio square in downtown Lisbon, Portugal on November 27, 2018. (Photo by Rafael Marchante/Reuters)





Women pose for a photo by the Christmas light decorations at a shopping centre in Bangkok, Thailand on December 2, 2018. (Photo by Soe Zeya Tun/Reuters)





People walk under trees decorated with Christmas lights at the Old Town Square in Prague, Czech Republic, December 2, 2018. (Photo by David W. Cerny/Reuters)





People watch fireworks during the annual Christmas Lights Across Canada ceremony on Parliament Hill in Ottawa, Ontario, Canada, December 5, 2018. (Photo by Chris Wattie/Reuters)





Brodsworth Hall is illuminated as part of English Heritage’s series of seasonal events in Doncaster, England on December 5, 2018. (Photo by Danny Lawson/PA Wire Press Association)





People watch as the Rockefeller Center Christmas tree is lit during the 86th annual Rockefeller Center Christmas tree lighting ceremony, Wednesday, November 28, 2018, in New York. (Photo by Mary Altaffer/AP Photo)





Protesters use fireworks against riot police during clashes in the Athens neighborhood of Exarchia, a haven for extreme leftists and anarchists, Thursday, December 6, 2018. New protest marches were underway in Greece Thursday evening on the 10th anniversary of the fatal police shooting of a teenager, hours after violent initial demonstrations where masked youths attacked police with firebombs and stones. (Photo by Yorgos Karahalis/AP Photo)





People walk past lobster traps stacked in the shape of a Christmas tree at the Historic Seaport in Key West, Florida, U.S., November 29, 2018. (Photo by Carol Tedesco/Florida Keys News Bureau/Handout via Reuters)