A girl laughs while unloading her boat of produce at a market in Ganvie on January 6, 2012 in Cotonou, Benin. Often called the Venice of Africa, Ganvie is a stilted fishing village on Lake Nokoue, near Cotonou in Benin, the largest such village in Africa, and home to approximately 20,000 residents. (Photo by Dan Kitwood/Getty Images)

A woman rides a mini bicycle through crowds of Santa costumes in a park during the annual SantaCon on December 10, 2016 in London, England. The event sees hundreds of people walking the streets of London and drinking alcohol in Father Christmas and other festive costumes. (Photo by PA Wire)

In this Wednesday, July 13, 2016, handout image provided by Solar Impulse, the Solar Impulse 2 flying over the pyramids, Egypt Cairo. The experimental solar-powered airplane has arrived in Egypt as part of its global voyage. (Photo by Jean Revillard, Rezo via the AP Photo)

In this Friday, May 10, 2019, file photo, rescuers help a baby wild elephant cross the wetland to return to the forest at Deepor Beel wildlife sanctuary in Gauhati, India. The elephant had gotten stuck in the waters of Deepor Beel after it was separated from a herd of wild elephant that came down in search of food last night. (Photo by Anupam Nath/AP Photo)

In this photo taken on Wednesday, January 9, 2013, ahead of the Chinese lunar new year of the Snake, following the Chinese zodiac, genetically modified, auspicious, white snakes slither across the altar at the Temple of White Snakes in Taoyuan county, in north western Taiwan. Director of the temple Mr. Lo Chin-shih says the new year of the snake would be a time of steady progress, in contrast to the more turbulent nature of the outgoing year of the dragon. The Chinese new year fall on February 10. (Photo by Wally Santana/AP Photo)

Children react as they celebrate Guy Fawkes day in Soweto, South Africa, on November 5, 2014. (Photo by Siphiwe Sibeko/Reuters)

A woman gets ready for her performance at the backstage of the Heart restaurant in Ibiza on June 29, 2015. Take the Spanish chefs Ferran and Albert Adria, the Cirque du Soleil founder French Guy Laliberte and contemporary artists such as Japanese Takashi Murakami. Put them together on the luxurious Mediterranean island of Ibiza and shake well to get “Heart” an innovative multi-sensory experience. The idea of provoking emotions through a collision of avant-garde creativities appeared two years ago from Adria brothers and Laliberte's passion about art and cuisine. They met a decade ago at the famous restaurant El Bulli, closed in 2011. (Photo by Jaime Reina/AFP Photo)

A women wearing a mask to protect from extreme smog visits the Tiananmen Gate in Beijing December 8, 2015 as China's capital issues its first ever "red alert" for pollution. (Photo by Damir Sagolj/Reuters)