Robert Irwin's 4 Unrealized Projects: FREEWAY MONUMENT (Embarcadero, San Francisco, 1977); TILTED PLANES (Ohio State University, 1978); VARIOUS SIGHT LINES (Fallingwater, Mill Run, Pennsylvania, 1988); ALLEE (Winter Olympics, Albertville, France, 1992)
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Robert Irwin's 4 Unrealized Projects: FREEWAY MONUMENT (Embarcadero, San Francisco, 1977); TILTED PLANES (Ohio State University, 1978); VARIOUS SIGHT LINES (Fallingwater, Mill Run, Pennsylvania, 1988); ALLEE (Winter Olympics, Albertville, France, 1992)