Xochimilco – Island of the Dolls – Dead Line. Photo by Ramalama_22

8 May 2001: Ronnie O'Sullivan of England poses for pictures at the Hilton Hotel with the trophy and his girlfriend Bianca Westwood after winning Embassy World Championship Snooker Final in Sheffield.

Two guards perform an execution in China, one holding the gun, the other holding a mask over the victim's face. (Photo by General Photographic Agency/Getty Images). Circa 1925

Current England long jump champion and London 2012 hopeful J. J. Jegede attempts an exhibition jump over three Limited edition 2012 MINIs on September 28, 2011 in London, England. This world first is taking place to celebrate the launch of the MINI London 2012 Edition models, of which only 2,012 will be produced. (Photo by Julian Finney/Getty Images for BMW)

A man irrigating a rice paddy field using a traditional method. (Photo by Fox Photos/Getty Images). Japan, circa 1938

A large variety of weapons were for sale at the Washington County Fairgrounds Gun Show that drew thousands of people over the weekend, on March 22, 2013. (Photo by Gary Porter)

The crowd watches as stunt pilots Melissa Pemberton, Jurgis Kairys and Skip Stewart of The Immortals fly past pyrotechnics as they perform at The Australian International Airshow on March 1, 2015 in Avalon, Australia. (Photo by Scott E. Barbour/Getty Images)