BRISTOL, ENGLAND - MARCH 04: In this photo illustration a man uses an app on his iPhone to look atbuildiong Extr a mural by the street artist Banksy which has been defaced by blue paint bombs is seen... more 
BRISTOL, ENGLAND - MARCH 04: In this photo illustration a man uses an app on his iPhone to look atbuildiong Extr a mural by the street artist Banksy which has been defaced by blue paint bombs is seen on the side of a building in Park Street on March 4, 2013 in Bristol, England. The Twentieth Century Society has launched a campaign to try and save some of the UK's best known post-war murals which like much of the early artwork of graffiti artist Banksy has been destroyed, defaced or just left to deteriorate. (Photo by Matt Cardy/Getty Images) less 
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Getty Images | Photo By Matt Cardy / Getty Images
Mon, Mar 4, 2013 11:34 AM EST