With WTTW Chicago PBS popular host, producer and Chicago Architecture Foundation docent Geoffrey Baer as your audio tour guide, this interactive walking tour invites you to experience the fascinating architectural history of Chicago’s Loop up close and in person. Starting and stopping at your own pace, you’ll discover why Chicago became an architectural mecca starting in the 1880s. The run-time of the audio tour is approximately 47 minutes. The Loop is Chicago’s official downtown area, one of t