Tourists play in the Harbin Ice And Snow World during its test run on December 22, 2015 in Harbin, Heilongjiang Province of China. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)
People hold out money as butchers sell their remaining produce of the year at discounted prices during the traditional Christmas Eve auction at Smithfield's market in London December 24, 2015. (Photo by Neil Hall/Reuters)
A lady smiles during the annual Calabar cultural festival in Calabar, Nigeria, December 28, 2015. Picture taken December 28, 2015. (Photo by Reuters/Stringer)
The Peugeot vehicle of driver Carlos Sainz of Spain is seen at the technical verification area ahead of the Dakar Rally 2016 in Buenos Aires, Argentina, January 1, 2016. (Photo by Marcos Brindicci/Reuters)
The Founders' Award winner, Downey Rose Float Association “Exploring the Everglades” float, moves through 127th Rose Parade in Pasadena, California January 1, 2016. (Photo by David McNew/Reuters)
A participant runs towards the waters of the North Sea during the annual New Year's plunge event in Ostend, Belgium, January 2, 2016. (Photo by Francois Lenoir/Reuters)
Giant panda Meng Meng plays on a tree at a Siberian tiger-breeding base in Changchun, China on December 10, 2015. (Photo by Xu Chang/Xinhua Press/Corbis)
A tribesman loyal to the Houthi movement carries his rifle as he leaves a gathering held to show support for the group, in Yemen's capital Sanaa December 15, 2015. (Photo by Khaled Abdullah/Reuters)