Leaning Strata, Robert Smithson,1968 A Heap of Language, Robert Smithson,1966
Robert Smithson's article" Strata: A Geophotographic fiction" (1970-71) Sign-- Hayden Planetarium, Robert Smithson's " The Domain of the Great Bear" (1966) A Non-site (site-New Jersey), Robert Smithson,1967, installation
Partially Buried Woodshed, Robert Smithson, 1969 Kent State University
Asphalt Rundown (Flows series), Robert Smithson,1969,Rome
Mirror Displacements (series of nine installations), Robert Smithson,1969, Mexico
Upturned Tree, Robert Smithson,1969
The Museum of the Void, Robert Smithson,1967
Floating Island, Robert Smithson,1970(built 2005)
Sprial Jetty, Robert Smithson,1970,Utah
Sprial Jetty, Robert Smithson,1970, Utah
Amarillo Ramp, Robert Smithson, 1970, Utah
Double Negative Michael Heizer, 1969-80, New Mexico
Valley Curtain, Christo Javacheff and Jeanne Claude, 1970-72, Colorado
Running Fence, Christo Javacheff,1976, California
Lightning Field, Walter de Maria,1977, New Mexico
Belts, Richard Serra,1967
Casting, RIchard Serra,1969
Prop Pieces, Richard Serra,1969 Strike: to Roberta and Rudy, Richard Serra,1969-71
One Ton Prop (House of cards), Richard Serra, 1969
Shift, RIchard Serra, 1970-72, King City, Ontario
To Encircle Base Plate Hexagram, Right Angles Inverted, Richard Serra, 1970, the Bronx, New York
Sight Point, RIchard Serra, 1971-75, Stedelijk Museum, Amsterdam Terminal, RIchard Serra, Boshum (Germany),1977 Twain, Richard Serra, 1974-82, St. Louis
Wright's Triangle, Richard Serra, 1976-80, Western Washington University Berlin block for Charlie Chaplin Richard Serra, 1977, Berlin (New Gallery)
Tilted Arc, Richard Serra , 1979-80, New York
Geometric options for Title Arc: a) conical section; b) cylindrical section