It’s the 100th anniversary of Route 66, and in Chicago, you’re at the start of the Mother Road. A two-hour-and-change drive takes you to a colorful collection of statues illustrating their place in advertising history. Take I-55 south to Atlanta, Illinois, get off at exit 140, and see “Lumi,” a large fiberglass lady, greeting you with a warm, bespectacled smile and an enormous fresh pie, letting you know the American Giants Museum is nearby.