The popular exhibition "Marcel Duchamp: a work that is not a work of art" in La Boca, Buenos Aires will continue for an extra week.  The exhibition, which opened on November 22, 2008, was a huge sucess and has recieved 30,000 visitors.  It features 123 works by Duchamp, including objects, works on paper, and photographs, and will close Febuary 8, 2009.