Vehicles clog a highway during a hazy day in Beijing, China, Wednesday, February 26, 2014. Beijing remained cloaked in hazardous white pollution hiding much of its skyline Wednesday, despite the announced closures or production cuts at 147 of the city's industrial plants. (Photo by Ng Han Guan/AP Photo)

Members of the Communist New Fourth Army on parade. Note how the modern equipment contrasts with the shoeless soldiers in the foreground. (Photo by Hulton Archive/Getty Images). 6th July 1946

Chinese artist Zhou Jie takes a nap on an unfinished iron wire bed, one of her sculpture works, after lunch at Beijing Now Art Gallery, in Beijing August 11, 2014. Zhou started her art project titled “36 Days” on August 9, in which she would live inside an exhibition hall with an unfinished iron wire bed, some iron wire sculptures in the shape of stuffed animal dolls, a certain amount of food and her mobile phone, for 36 days. The entire process is open to visitors and she may also interact with them, according to Zhou. (Photo by Jason Lee/Reuters)

Chinese Artist Ai Weiwei holds some seeds from his Unilever Installation “Sunflower Seeds” at The Tate Modern on October 11, 2010 in London, England. The sculptural installation comprises 100 million handmade porcelain replica sunflower seeds. (Photo by Peter Macdiarmid/Getty Images)

A model presents a creation by Maltese hairstylist Marielle Calleja of Prive at the Malta Fashion Awards 2015 at the Marsa Shipbuilding warehouse in Marsa, outside Valletta in Malta, May 16, 2015. (Photo by Darrin Zammit Lupi/Reuters)

A model presenting a creation from Andres Sarda's Fall/Winter 2016 collection prepares to pose for a portrait backstage during the Mercedes-Benz Fashion Week in Madrid, Spain, February 21, 2016. (Photo by Susana Vera/Reuters)

Models wear creations from the Ronaldo Fraga collection during the Sao Paulo Fashion Week in Sao Paulo, Brazil, Monday, April 25, 2016. (Photo by Andre Penner/AP Photo)

A model presents a creation for the Amir Slama collection during Sao Paulo Fashion Week in Sao Paulo, Brazil, October 26, 2016. (Photo by Nacho Doce/Reuters)