While walking around Madrid one afternoon (perhaps the day we were searching for a supermarket on the way back to your place after lunch with Herm, Hannah? I don't remember!), this apartment building caught my eye:
I think it was either an artistic or political display, but never found out what it was exactly. Here's a close up of one side of the building:
I think we were near the city center, somewhere around Ópera or La Latina. Has anyone seen this display in Madrid? What is the statement being made?