As part of our Urban Light celebration, we present you with...an Urban Light quiz! Some of the questions are pretty tough, but we're providing many of the clues you'll need via our Twitter account and Facebook page. Doing a little research to get the answers right is worth it—the winner, chosen at random from all the entries with the highest number of correct answers, will get a signed Chris Burden monograph. Just make sure to enter by February 14. And good luck.