The Vivian Beaumont Theater is a theater in New York City in the United States. It is located at Lincoln Center, 150 W. 65th Street, on the Upper West Side of Manhattan. It was designed by the renowned Finnish American architect Eero Saarinen. Although it was built for the presentation of plays such as those produced on Broadway, it differs from traditional Broadway theaters because of its amphitheater configuration and thrust stage. The building includes two auditoriums, the 1,080-seat Vivian Beaumont Theater and the 299-seat Mitzi E. Newhouse Theater (called The Forum until 1973). The Beaumont is considered a fairly large theater for dramatic plays and a medium-size theater for musicals.