A tourist poses for a picture with the Sphinx at the Pyramids of Giza in Cairo, Egypt, on October 19, 2011. (Reuters/Jamal Saidi)

Mr. Grindell Matthews with his latest invention, the new photographic gun which is the latest development in sky signs. 1933. It can throw a beam of light 15 miles into the sky. (Photo by Fox Photos)

At the end of a six-year relationship, photographer Laura Stevens needed to find a creative, external outlet for all the complicated feelings she was processing internally. “Another November” is the end product, a photo series that aims to mirror those agonizing emotions that Stevens felt at the time of the breakup – and the subsequent healing process. Here: “Jessica” is photographed at her Paris home in this scene staged by photographer Laura Stevens. (Photo by Laura Stevens)

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)

A woman smiles as she gets a new tattoo during Rio Tattoo Week in Rio de Janeiro, Brazil, Friday, January 16, 2015. Tattoo artists from Brazil and around the world gathered for the annual three day convention. (Photo by Silvia Izquierdo/AP Photo)

Faces adorn crosses placed in the Garden of Remembrance of some of Britain's armed forces members who have died in Afghanistan in the Garden of Remembrance outside Westminster Abbey at the official opening of the Royal British Legion's Field of Remembrance on November 5, 2009 in London, England. (Photo by Alastair Grant-Pool/Getty Images)

Captain George Ash lies on his back as he prepares to shoot the bowl from the clay pipe held between a blindfolded corporal's teeth. (Photo by Fox Photos/Getty Images). 18th April 1932

Margaret Morris dancers exercising on the sands at Saint-Idesbald. (Photo by Fox Photos/Getty Images). August 1929