Couples kiss during a kissing contest in Wuhan, Hubei province, November 23, 2014. Some 20 couples attended the contest and the winners have been awarded an iPhone 6, according to local media. (Photo by Reuters/Stringer)

People sit at an oversize picnic table in Soho Square in London May 19, 2014. (Photo by Luke MacGregor/Reuters)

Women wearing sunglasses pose for a group photo at a park in Beijing in 1980. (Photo by Reuters/China Daily)

Kim Kardashian filming scenes for Ocean's Eight in Downtown Los Angeles on March 6, 2017. (Photo by Clint Brewer/Splash News and Pictures)

A goat begs for food as people have a meal and beer at the Beichelstein-Alpe outdoor restaurant near Seeg, southern Germany, on March 27, 2017. (Photo by Karl-Josef Hildenbrand/AFP Photo/DPA)

Tourists watch the Christmas Day sunrise behind Diamond Head from Waikiki Beach in Honolulu, Friday, December 25, 2015. (Photo by J. David Ake/AP Photo)

Men selling sheep wait for customers at a local livestock market, ahead of the Eid al-Adha festival, in Lagos, Nigeria September 11, 2016. (Photo by Akintunde Akinleye/Reuters)

Dancers perform on stage during the Crazy Horse Paris “Forever Crazy” Media Call at The MasterCard Theatres at Marina Bay Sands on October 11, 2017 in Singapore. Forever Crazy consists of a series of highly aesthetic and visual tableaus presented by a classically trained dancers clad only in textured lighting and projection. The show runs from 11 October 2017 till 22 October 2017 in Singapore. (Photo by Suhaimi Abdullah/Getty Images)