A child plays with a soap bubble on the city hall plaza on March 14, 2015 in Paris. (Photo by Dominique Faget/AFP Photo)

Paul, 9, dumps a bucket of water over his head at a fountain near government buildings during hot weather on July 1, 2015 in Berlin, Germany. Temperatures across northern Europe are rising and in Germany a high of 36 degrees is forecast for the weekend. (Photo by Sean Gallup/Getty Images)

Pakistani Christian Maria Akbar, 15, checks herself in the mirror, after having her make up done by hairdresser Razia Rehmat, 39, in preparation for Christmas holiday, at a hair salon, in a slum that hosts Christian families, on the outskirts of Islamabad, Pakistan, Wednesday, December 24, 2014. (Photo by Muhammed Muheisen/AP Photo)

A woman buys bread at a bakery in Cairo, January 8, 2015. The successful roll-out so far of a new “smart card” system to distribute subsidised bread has been a major achievement for Egypt's government, saving money while earning praise from families who no longer have to wake early to fight for loaves. (Photo by Mohamed Abd El Ghany/Reuters)

File photo dated 21/04/66 of Pattie Boyd in London's West End wearing a mini skirt, as the British designer Mary Quant, widely credited with popularising the mini skirt has recalled its “feeling of freedom and liberation” 50 years after she took the fashion world by storm. Quant, who named the skirt after her favourite make of car, said she “couldn't have imagined” in 1964 that it would become a staple of women's clothing, but added: “It seemed then to be obvious, and so right”. (Photo by PA Wire)

Talbot Lago T26 Grand sport SWB Saoutichik is displayed for auction during the Retromobile show in Paris, Tuesday, February 3, 2015. 60 rusting motors, which include a vintage Ferrari California Spider, a Bugatti and a very rare Maserati, were found gathering dust and hidden under piles of newspapers in garages and outbuildings at a property in France. The cars were collected from the 1950s to the 1970s by entrepreneur Roger Baillon, who dreamt of restoring them to their former glory and displaying them in a museum, but, his plans were dashed as his business struggled, forcing the sale of about 50 vehicles, to be auctioned off on Feb. 6. (Photo by Jacques Brinon/AP Photo)

Students in Aone’s elementary school during break in between the class on April 9, 2015. The school has only six students, two of whom are from the same family. Similarly small schools can be found throughout Japan. (Photo by Ko Sasaki/The Washington Post)

Colombia fans celebrate a goal during the World Cup Group C soccer match between Colombia and Greece, at a park in Bogota June 14, 2014. (Photo by John Vizcaino/Reuters)