One of the primary competitors of BROOKFIELD SQUARE was -and is-
SOUTHRIDGE MALL. The complex, dedicated in September 1970, was
the Dairy State's first 2-level, fully-enclosed shopping center. Today, with

a gross leasable area of 1,177,000 square feet, it is Wisconsin's third-

largest mall. As a matter of note, Wauwatosa's MAYFAIR (MALL) is the 

largest.
Photo from Wikipedia / "Sulphur"
Graphic from Taubman Centers, Incorporated