Frank Lloyd Wright's Prairie flair is reflected in everything he did. From his architectural drawings to the way he signed his name, Wright's style is certainly unique and identifiable. And while the famous architect wasn't a cartographer, it wouldn't have been too surprising to see Wright dabble in the art of map making. Author, map enthusiast and transit design historian Mark Ovenden was recently in Chicago to discuss the Chicago transit, CTA design and the latest edition of his Transit Maps of The World book. Another item he presented was this map of the CTA rail system in the style of Frank Lloyd Wright. Designed by British cartographer Maxwell Roberts, the map is of the same CTA system we're all familiar with, but reimagined in the style of Wright's Prairie School.