Visitors take pictures in front of a work by Zack during the Art Rua street art festival in Rio de Janeiro September 6, 2013. The Art Rua festival, taking place over four days, involves exhibitions by... more 
Visitors take pictures in front of a work by Zack during the Art Rua street art festival in Rio de Janeiro September 6, 2013. The Art Rua festival, taking place over four days, involves exhibitions by more than 40 foreign and Brazilian artists, galleries and art crews, as well as parties, shows and lectures celebrating urban art. REUTERS/Ricardo Moraes (BRAZIL - Tags: SOCIETY ENTERTAINMENT) less 
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Reuters | Photo By RICARDO MORAES / REUTERS
Fri, Sep 6, 2013 10:09 PM EDT