On the Trust’s PreservationNation blog it states:
Peavey Plaza, a modernist “park plaza” designed by M. Paul Friedberg and Associates, is one of the few works of landscape architecture listed on the National Register of Historic Places. Since its completion in 1975, the Plaza has gained credit for helping to revitalize downtown Minneapolis and in 2008 was listed among the “Marvels of Modernism” by The Cultural Landscape Foundation (TCLF). In 2012, the City Council of Minneapolis voted to demolish Peavey Plaza and replace it. TCLF and the Preservation Alliance of Minnesota (PAM) sued to prevent demolition and succeeded in August 2013 in reaching a settlement agreement with the City that calls for the Plaza’s rehabilitation.
Chicago’s Wrigley Field ranked seven on the list. You can peruse the full list here.