Visitors wear shirts with an image of former Chinese leader Mao Zedong at the Shanghai World Expo site in Shanghai, May 2, 2010. (Photo by Aly Song/Reuters)

Model Heidi Klum attends her 8th Annual Halloween Party at The Green Door on October 31, 2007 in Los Angeles, California. (Photo by Charley Gallay/Getty Images)

Travis Gerrits of Canada competes during qualifying for the Mens Aerials at the FIS Freestyle Ski World Cup Aerial Competition at Deer Valley on January 10, 2014 in Park City, Utah. (Photo by Mike Ehrmann/Getty Images)

Emma Watson attends the Elle Style Awards 2014 at one Embankment on February 18, 2014 in London, England. (Photo by Tim P. Whitby/Getty Images)

Handout photo issued by Easyart of an experimental motorcycle as an archive of weird and wacky innovations has been unearthed by an amateur historian as he trawled through a collection of images spanning the last 100 years. (Photo by Easyart/PA Wire)

A Chinese man uses an old film camera to take a picture of relatives near the Forbidden City on March 27, 2014 in Beijing, China. (Photo by Kevin Frayer/Getty Images)

A craftsman works on making human anatomy mannequins on April 23, 2014 in Depok, West Java, Indonesia. The mannequins are made from fiberglass and will be used in schools, hospitals and laboratories. (Photo by Nurcholis Anhari Lubis/Getty Images)

A woman gets tattooed at The Great British Tattoo Show at Alexandra Palace on May 24, 2014 in London, England. (Photo by Tristan Fewings/Getty Images for Alexandra Palace)