You are seeing triple, but it's not from the drugs. These kaleidoscopic images were created by Japanese architect and photographer Kazuhiko Kawahara (moonlighting under the name Palla). In 2002, Palla began digitally manipulating urban snapshots and posting them on his blog, Pallalink.net. This led to a little ad hoc crowdsourcing: Site visitors left remarks and suggestions that Palla channeled into his art. "Thanks to everyone's comments," he says, "the quality of my work has gotten better." (It's a two-way street: Earlier this year Palla donated The Unfold Cityscape, above, to the open source movie collective a Swarm of Angels.)