The Milwaukee Exposition and Convention Center and Arena (MECCA) stood in Milwaukee’s Civic Center district on West Kilbourn Avenue for 24 years. Hunzinger Construction served as General Contractor for the facility that opened in 1974 adjoining the Auditorium/Arena complex. The design for the facility, by the Chicago firm of Welton Becket & Associates, included a two-level structure built on the two blocks between Wells, Kilbourn, Fourth, and Sixth Streets.
The main floor exhibition space covered 132,000 square feet, including a Great Hall of 66,000 square feet. The second floor consisted of additional conference space and meeting rooms with a cantilevered roof. A skywalk system connected the building with the Auditorium/Arena; Hunzinger built the skywalk that was added in 1983 to the Hyatt Hotel to the east.