Spraying in Roman streets
The old town of València (Ciutat Vella) is without a doubt one gorgeous, roman built labyrinth with lots of small, winding alleys and beautiful plazas. A cultural heritage one might say. Besides that it seems to be a vivid space for street art as well though.
While in some parts of the city -like the hyper modern Ciutat de les Arts i les Ciències- you'll have a hard time spotting a piece of Graffiti, the rest of València is full of commissioned art work, like on the window blinds of shops for example. The difference to the paintings in the old town is that here the works often have a political or social statement and it seems more like they were produced as a sign of protest or for artistic expression rather than to be commissioned.