Marina Abramovic - The Artist is Present, 2010
From Museum of Modern Art, NYC:
The Artist Is Present, The Museum of Modern Art’s first performance retrospective, Abramović performed in the Donald B. and Catherine C. Marron Atrium every day the Museum was open between March 14 and May 31, 2010. Visitors were encouraged to sit silently across from the artist for a duration of their choosing, becoming participants in the artwork. Many visitors ended up in tears, frightened and stunned by the simple and timeless performance.