of floor space. It formerly housed the entire college, including classrooms, dormitories, museum, library, and dining halls. The building was designed by Smithsonian architect James Renwick Jr. and was completed in 1865. It was preceded on campus by the original observatory. Both buildings are National Historic Landmarks. Rombout House was purchased by the college in 1915 and added to the National Register of Historic Places in 1982. Many original brick buildings are scattered throughout the campus, but there are also several modern and contemporary structures of architectural interest. Ferry House, a student cooperative, was designed by Marcel Breuer in 1951. Noyes House was designed by Finnish-American architect Eero Saarinen. More recently, New Haven architect César Pelli was asked to design the Lehman Loeb Art Center, which was completed in the early 1990s. In 2003, Pelli also worked on the renovation of Main Building Lobby and the conversion of the Avery Hall theater into the $25 million Vogelstein Center for Drama and Film, which preserved the original 1860s facade but was an entirely new structure. Libraries Vassar is home to one of the largest undergraduate library collections in the U.S. The library collection today – which actually encompasses eight libraries at Vassar – contains about 1 million volumes and 7,500 serial, periodical and newspaper titles, as well as an extensive collection of microfilm and microfiche, with special collections of Ellen Swallow Richards, Albert Einstein, Mary McCarthy, and Elizabeth Bishop. Vassar has been a Federal Depository library for selected U.S. Government documents since 1943 and currently receives approximately 25% of the titles available through the Federal Depository Program. Since 1988, Vassar has been a New York State Reference Center, part of the New York Depository Program. The library also selectively purchases United Nations documents. A major renovation to Thompson Library was completed in 2001. The interior and exterior of the Van Ingen Art Library was renovated from June 2008 – May 2009 in an effort to restore its original design and appearance. This was the library's first major renovation since its construction in 1937. Frances Lehman Loeb Art Center Vassar College was the first college in the United States to be founded with a full-scale museum as part of its original plan. Matthew Vassar was known for declaring that "art should stand boldly forth as an educational force". The art collection at Vassar dates to the founding of the college, when Vassar