6 Gray Mirrors, 2003
Copper Containing Salt, 1990
Crouching Spider, 2003
Map of Broken Glass (Atlantis), 1969
Raum 19, 1968
Sun Tunnels, 1973–76
Times Square, 1977/2002
Untitled, 1991
Untitled (from Ten Vertical Constructions [rust red variation]), 1977–79
untitled (to Jan and Ron Greenberg), 1972–73
Water Composition (multi color), 1969–70/2021
We Know the Way, 1970/2022
Amoeba, 1963–65
Arena, 1997
Avenza Revisited II, 1968–69
Cielo terrenal (Earthly Heaven), 2023
Closed Mirror Square (Cayuga Salt Mine Project), 1969
Clutching, 1962
Concave Earth, 1986–90
Duo Nesting Boxes, 2021