Richard Haas has been called a magician, only his magic wand is a paintbrush. For four decades, Haas has been a one-man urban renewal project, turning blank walls into artistic treasures.
"I see myself, first of all, simply as an artist," he told correspondent Serena Altschul. "Secondly, I'm a painter, drawer, printmaker, muralist, and occasional, partial city planner."
Left: In 1992, Haas altered this roof's shape and filled in four windows when he created a 60-foot high trompe l'oeil memorial sculpture of the local Native American hero Black Hawk.
By CBSNews.com senior producer David Morgan