Check this: reader Mission Mistaken was just in Paris and stumbled across this museum featuring an installation of graffiti as pop art. Nothing really shocking here, but it is another check in the column of legitimizing graffiti as an art form.
I was just in Paris and the Cartier Foundation Museum (yes, as in tank watches & diamonds) featured a comprehensive show on the history of graffiti as pop art. But being French they couldn’t just settle for a tame treatment. Rather, everything was game for a coating of spray paint. The building exterior, even the basement corridors and the bathrooms.