added new pic of Tilted Arc
In 1981, Richard Serra installed Tilted Arc, a gently curved, 3.5 meter high arc of rusting mild steel in the Federal Plaza in New York City. There was controversy over the installation from day one, largely from workers in the buildings surrounding the plaza who complained that the steel wall obstructed passage through the plaza. A public hearing in 1985 voted that the work should be moved, but Serra argued the sculpture was site specific and could not be placed anywhere else. Serra famously issued an often-quoted statement regarding the nature of site-specific art when he said, “To remove the work is to destroy it.” Eventually on 15 March 1989, the sculpture was dismantled by federal workers and taken for scrap. William Gaddis satirized these events in his biting 1994 novel A Frolic of His Own.
extract from wikipedia
more detail about Richard Serra here: