The "Hat Throw" from the opening of the Mary Tyler Moore show has been ranked as one of the Greatest Moments in TV History, and it was filmed at the corner of 7th St. and Nicollet Mall. In 2002, the TV Land network decided to honor the moment with a bronze statue celebrating that scene.
If you go:
Downtown Minneapolis has many more works of public art, with Nicollet Mall being one of the most common areas to find sculpture and statues.
Links:

700 Nicollet Mall
Minneapolis, Minnesota 55402 USA
mary.altman@ci.minneapolis.mn.us
Mailing address:
Minneapolis Office of Cultural Affairs
250 South 4th Street
Room 110
Minneapolis, MN 55415 USA
Phone Numbers:
Minneapolis Office of Cultural Affairs
+1 (612) 673-2597
+1 (612) 673-2597