Dualing photographers, Great Chicago Places and Spaces, and Bruce Mau from the lawn this weekend

Some late additions to the calendar. Todd Eberle: Architectural Abstractions, is one of two new architectural photography exhibitions that open this Saturday, the 20th. Eberle's show opens at the Art Institute, while also opening on Saturday at the Museum of Contemporary Art is Catherine Opie: Chicago (American Cities), a series of photographs of Chicago by the L.A.-based photographer. Opie and Wolfgang Tillmans will discuss their work today, Thursday, at 6:30 P.M. at the MCA's auditorium.

Also on Saturday, beginning at 9;00 A.M., the Pritzker Pavilion at Millennium Park will be the site for its first-ever graduation, for the the School of the Art Institute of Chicago. Graphic artist and futurist Bruce Mau will be the featured speaker. The pavilion, itself will be reserved for the 800 graduates and their guests, but you may still be able to catch his speech from the great lawn. This September, Mau's own exhibition, Massive Change: The Future of Global Design, finally will wend its way to Chicago after several years at other museums at the Museum of Contemporary Art.

Finally, this years Great Chicago Places and Spaces kicks off Friday evening with a 6:00 conversation at the Chase Theater at 10 South Dearborn featuring Lee Bey, IIT's Donna Robertson and Jaime Lerner, former Mayor of Curitiba, Brazil. Over the weekend, Great Chicago Places will offer over 200 tours of Chicago architecture.