Smithsonian.com shares a story of a South London gallery sparking a very valid art discussion:

What makes one piece of art more valuable than the next?

The curators at Dulwich Picture Gallery are bringing new life to the old question with a creative experiment. They will place a £120 replica of a highly prized painting into their collection, which includes work by Rembrandt, Poussin, Ruben and Veronese. But don’t expect any help from museum officials on determining which are authentic and which one is the fake. Instead, the Guardian reports, patrons will be challenged to make the identification themselves.