Now that Chicago has big, back-lit bus stop advertising, it’s a good time for an exhibit of photographs by Jeff Wall, a Vancouver-based artist whose huge, lightboxed works were inspired by ads he saw while traveling Europe. Wall opens the exhibit with a lecture today at 6 PM; it’s free and open to the public, because it’s part of the Art Institute’s free summer hours (Thursday and Friday evenings from 5 PM-9 PM through August 31). The exhibit opens tomorrow and runs through 9/23. Here’s a preview:

Overpass by Jeff Wall