Recognized as a pioneer of the Land Art movement of the 1960’s, Michael Heizer (b. 1944) uses his massive, innovative sculptures to shift our understanding of what art can be. Installed in Room 5, Collapse, 1967/2016 is a large-scale weathering steel sculpture comprised of fifteen beams arranged within—and extending beyond—a box fitted within the surrounding earth. Commissioned for Glenstone, this work is based on a wooden model studying chaos structure that the artist created in 1967. This “outdoor” sculpture is installed within an enclosure open to the elements but accessed only via the Pavilions interior.