Embracing graffitis' cultural value can do wonders for tourism. In Bristol, England, the 2012 see no evil festival saw 50,000 people flock to the streets. In Stavanger, Norway, the city walls are transformed into black canvas for highly successful annual NuArt festival. And for every painted wall in a city there is most likely a tour to go with it. A three hour graffiti walk around the streets of shoreditch, London, could set you back $26 in colorful buenos aires, Argentina, a tour of the decorated walls can cost $25.