8 One-Hour Chicago Attractions
Chicago Architecture Foundation
Destination: The city's stunning architecture is a testament to the brilliant--and bedeviled--men who invented the skyscraper. Learn about their stories during hourlong $5 lunchtime walking tours led by Chicago Architecture Foundation docents (312/922-3432; architecture.org).
What you'll see: On the Marquette Building tour (left), you'll see bronze friezes and Tiffany glass mosaics and learn how this 1895 landmark captures Chicago style.
Tip: These Big Building Mini-Tours start at 12:15 p.m. on weekdays, and visitors have 18 tours to choose from (topics vary depending on the day).