Images Robert Smithson: Sculpture Apr 10, 1981 – Jun 14, 1981 Images Installation view, Robert Smithson: Sculpture, MCA Chicago Photo: Walter Russell © MCA Chicago Installation view, Robert Smithson: Sculpture, MCA Chicago Photo: Walter Russell © MCA Chicago Installation view, Robert Smithson: Sculpture, MCA Chicago Photo: Walter Russell © MCA Chicago Installation view, Robert Smithson: Sculpture, MCA Chicago Photo: Walter Russell © MCA Chicago Installation view, Robert Smithson: Sculpture, MCA Chicago Photo: Walter Russell © MCA Chicago Installation view, Robert Smithson: Sculpture, MCA Chicago Photo: Walter Russell © MCA Chicago Installation view, Robert Smithson: Sculpture, MCA Chicago Photo: Walter Russell © MCA Chicago