A line of soldiers firing handguns during a training session, circa 1920. (Photo by Keystone). P.S. All pictures are presented in high resolution.

People stand along Aviation Blvd. as the space shuttle Endeavour lands at LAX in Los Angeles. (Photo by Wally Skalij/Los Angeles Times/MCT)

“The White Dragontail, Lamproptera curius, is a species of swallowtail native to parts of South Asia and Southeast Asia. It belongs to the Dragontails genus, Lamproptera, of the Swallowtail (Papilionidae) family”. – Wikipedia. (Photo by Boti)

“The girl behind the camera and the girl in front of the camera”, May 2012. (Photo by: Mandy Rosen; Source: Flickr)

Actress Rosie Huntington-Whiteley arrives at the LACMA Art + Gala at LACMA on October 27, 2012 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)

In this photo illustration a sat nav is seen attached to a windscreen of a car in front of a sign telling some motorists to ignore their satellite navigation devices on January 6, 2012 in Symonds Yat, England. (Photo illustration by Matt Cardy/Getty Images)