Video walkthrough of Richard Serra's sculpture Torqued Ellipse IV (1998) on display at MoMA as part of the exhibition Richard Serra Sculpture: Forty Years, on view June 3-September 10, 2007. For more information about the exhibition, please visit www.moma.org/serra.

Audio courtesy of Acoustiguide Video production and editing by CK Studios, Inc.

© 2007 The Museum of Modern Art, New York