In 25 years, some of The Oprah Winfrey Show's most memorable moments happened away from Chicago's Harpo Studios.
The Oprah Winfrey Show | May 20, 2011
Michigan Avenue, Chicago
For Oprah's 24th season kickoff party, she didn't travel far—just a couple of miles from Harpo Studios to Chicago's famed Michigan Avenue shopping district. But who will ever forget the party that started with a Black Eyed Peas flash mob?