Taxi drivers wait for passengers at the Beijing Railway Station on February 5, 2006 in Beijing, China. (Photo by China Photos/Getty Images)





Local residents crowd a swimming pool during a hot weather in Suining, Sichuan province, 27 July 2008. (Photo by Reuters/Stringer)





Visitors crowd at the entrance of the glass-bottom bridge at Zhangjiajie Grand Canyon on August 20, 2016 in Zhangjiajie, Hunan Province of China. The Zhangjiajie Grand Canyon's glass-bottomed bridge welcomed its trial operation on Saturday and about 8,000 tourists crowded to view the grand glass bridge. Stretching 430 meters long and 6 meters wide, hovering over a 300-meter-deep valley between two cliffs in the canyon area, the much-awaited “world's highest and longest” glass-bottomed bridge has already set world records for its architecture and construction. (Photo by VCG/Getty Images)





People visit a lantern show to celebrate Chinese Lunar New Year of Snake at Yuyuan Garden on February 11, 2013 in Shanghai, China. (Photo by VCG/VCG via Getty Images)





Passengers crowd the Shanghai Hongqiao railway station as they wait to board their trains to head to their hometowns for the Lunar New Year holiday, in Shanghai on February 3, 2016. Over 2.9 billion trips will be made around China during the 40-day “Spring Festival” travel rush, which kicked off on January 24, Chinese authorities estimated. The Spring Festival, this year being the Year of the Monkey. (Photo by AFP Photo/Stringer)





People visit a lantern show to celebrate Chinese Lunar New Year of Snake at Yuyuan Garden on February 11, 2013 in Shanghai, China. The Chinese Lunar New Year of Snake also known as the Spring Festival, which is based on the Lunisolar Chinese calendar, is celebrated from the first day of the first month of the lunar year and ends with Lantern Festival on the Fifteenth day. (Photo by VCG/VCG via Getty Images)





People cool off at a beach in Dalian, Liaoning Province, China, August 6, 2016. (Photo by Reuters/Stringer)





Visitors participate in the annual water-splashing festival in Xishuangbanna, Yunnan province, April 15, 2015. Thousands of people participated in the festival on Tuesday to celebrate the 1,377th ethnic Dai minority New Year, local media reported. (Photo by Reuters/Stringer)





Visitors queue up before viewing the soaring tide near the bank of Qiantang River in Hangzhou, Zhejiang province September 25, 2010. Tidal waves are highest during the eighth month of the lunar calendar, local media reported. (Photo by Steven Shi/Reuters)





Residents crowd in a swimming pool to escape the summer heat during a hot weather spell in Daying county of Suining, Sichuan province July 4, 2010. (Photo by Reuters/Stringer)





Chinese national flags are seen as tourists throng the Nanjing pedestrian road, a main shopping area, on the second day of the seven-day National Day holiday in Shanghai, China October 2, 2015. (Photo by Aly Song/Reuters)





Chinese revellers flock along Shanghai's busy Nanjing Road May 1, 2002. Throngs of people flock to China's financial capital to celebrate a week-long Labor Day holiday to honor workers worldwide. (Photo by Claro Cortes IV/Reuters)





Tourists crowd Nanjing road in Shanghai October 1, 2007. About 660,000 people visited Shanghai on China's National Day. China celebrates the 58th anniversary of the founding of the People's Republic of China on Monday. (Photo by Reuters/China Daily)





Laundry hangs outside a student dormitory at a college in Wuhan, Hubei province in this March 5, 2009 file photo. Down-at-heel Xiaojiahe in Beijing's university district seems an unlikely haven for China's aspiring elite, but its reeking alleys and dank rooms offer a low-budget bolthole for graduates battling to find work. (Photo by Reuters/Stringer)





Students take an examination on an open-air playground at a high school in Yichuan, Shaanxi province April 11, 2015. More than 1,700 freshmen students took part in the exam on Saturday, which was the first attempt by the school to take it in open-air. The school said the reasons was due to the insufficient indoor space and also that it could be a test of the students' organizing capacity, local media reported. (Photo by Reuters/Stringer)





A woman collects her bicycle from a parking lot outside a subway station in Beijing in this November 12, 2007 file photo. (Photo by Reinhard Krause/Reuters)





Thousands of job seekers visit booths at a job fair in Chongqing municipality, October 11, 2014. (Photo by Reuters/Stringer)