Mosaics

Following the graffiti post, let's have a look at another public art form: mosaics (a surface decoration made by inlaying small pieces of variously colored material to form pictures or pattern). There are some nice samples of berets laid in mosaic tiles, like this one here at a restaurant in Navarra:

Or this one

but then, of course, Spain has a great tradition of mosaics, from the Moorish times to Gaudi.