From May through September, this free, ticketed 40-minute tour departs every Saturday at 10:00 am and 10:40 am from the Randolph and Wabash CTA elevated train station.
Tickets are distributed on the day of the tour from 9:00 am at the Visitor Information Center.
Docents from the Chicago Architecture Foundation present the history of the 130-year-old downtown area and the 'L' system as the train circles the Loop three times.