I think street art adds greatly to the charm of a city. Not only is it great to walk around and suddenly see this image through the crack left between two buildings, after you've seen it, you will notice that the city is just full of graffiti, posters and stickers showing clever or not-so-clever adaptations to it. Even if most street art is relatively uninspired, it can be a delight just to see that people make the city theirs through art. That's the greatest thing about street art: other than old buildings or even modern architecture (both of which I also enjoy of course), it's alive.
