seat classrooms. It also provides lab and research space for the Departments of Biology, and Earth and Planetary Sciences. The Environmental Studies Program is also housed inside of McDonnell Hall. McMillan Hall - Dedicated in 1906, McMillan was the first women's dormitory on the Danforth Campus. In the early 1960s, McMillan Hall was remodeled into an academic building. It now houses the Department of Anthropology, the Committee on Social Thought and Analysis, the Department of Education, and the program of African and African American studies. McMillan Laboratory - Completed in 1964, this building also houses the Department of Chemistry. It is connected to Prince Hall by Millstone Lounge. Monsanto Laboratory - This lab also houses the Department of Biology. Psychology Building - Designed by Skidmore, Owings & Merrill, the Psychology Building was completed in 1994, and has yet to be dedicated. It is in size and forms a quadrangle with McDonnell Hall, Wilson Hall and Monsanto Lab. Its facade was modeled after the main facade of Brookings Hall. In the summer of 2006, the Psychology Building was extended to include other classroom and office space. It houses the Department of Psychology and the Linguistic Studies Program. Rebstock Hall - Dedicated in 1927, this building serves as the central home of the Biology Department. Ridgley Hall - This served as the University's first library building until the early 1960s. During the 1904 World's Fair, Ridgley housed an exhibit of Queen Victoria's Diamond Jubilee gifts. The former library reading room was transformed into an ornate lounge space, which today is known as Holmes Lounge. Ridgley Hall is also the home of several language departments, the Committee on Comparative Literature and the Language Lab. Seigle Hall - Completed and dedicated in 2008, Seigle Hall is an interdisciplinary endeavor, providing physical space for research centers and institutes, the Departments of Economics, Education, and Political Science, and the School of Law. With 15 classrooms, it is the largest academic classroom building on campus. Wilson Hall - This structure was built in 1925 with a mineralogy lab, a petrology lab, and a testing lab for the study of Geology and Geography. The structure was expanded in 1976. It was renovated in the summer of 2006 and now houses the Philosophy Department and a portion of the Biology Department. Wrighton Hall (formerly Laboratory Sciences Building) - Dedicated in 2002, this building provides additional lab space for teaching