Street Art
The grimy industrial cities of the UK has Banksy, who is deconstructing our capitalist system. Barcelona has Pez, and his Happy Fish, who is just that: Happy! I can't help but prefer Pez.
Justin Case has many more street art photos on his website barcelonastreetart.net.
Example of art on the roller shutters of a store. On the right shutter a pair of something that looks like the "Happy Fish" by Pez can be seen making up the eyes of the face.
This is the "Happy Fish", designed by artist Pez in 1999.
Another "Happy Fish" - this time an evolved type with arms and legs.