Seeing opportunity just under his feet, artist Christo Guelov wondered how a mundane street crossing could be turned into a thing of beauty. Like the design of a chair or the face of a watch, it turns out the possibilities are probably endless. The Bulgarian artist transformed dozens of pedestrian crossings in Madrid as part of his series Funnycross, working with a palette of friendly colors to paint fun geometric patterns on streets across the city. You can see much more of the project on his website. (via My Modern Met)