Architecture of the Sky, 1990, is one of the memorials to lives lost during the AIDS crisis by Ross Bleckner (American, b. 1949). The built-up surface of a pattern of dots suggests the lesions produced by AIDS-related sarcomas, and Bleckner exploits the floating imagery to render the material surface both beautiful and terrifying. Louise Nevelson (American, b. Ukraine, 1899–1988) often allowed materials to take over and guide her process in the boxes and walls she created from dismantled furniture and ornaments. In Untitled, ca. 1970, among the artist’s all-black sculptures, Nevelson transformed an external world of found objects into a personal landscape. Donald Sultan (American, b. 1951) continues his commitment with process in Polish Landscape II Jan 5 1990 (Auschwitz), 1990, from his Disaster Paintings series. The large scale work of impressive physicality references a specific landscape freighted with its tragic history by a visceral evocation of the subject in tar and paint.