“Ever since plans for the [Art Institute of Chicago’s] Modern Wing were unveiled eight years ago, I’ve been harping on the need to bring pedestrians safely between Millennium Park and the wing, either through a tunnel or a mid-block crosswalk. And I’m not the only one. In a phone call Tuesday from the Paris office of the Modern Wing’s architect, Renzo Piano, his staff confirmed that Piano has personally asked Mayor Richard Daley for a crosswalk.” Without it, 90-year-olds are jaywalking there now.