Some really creative folks in Germany used a high-definition digital projector to produce amazing trompe l'oeil effects on the side of the Hamburg Kunsthalle. The animation takes its cue from the gridlike pattern on the face of the building, and builds from there.
Yes, yes, I know, Rick Rolling was soooooo 2008. But this new video mash-up by DJ Morgoth was just too good not to post. The video mix isn't much to look at, but the musical juxtaposition really works.