Hardin Hall is the oldest academic building on campus. It was originally built as the Chemistry laboratory, it was expanded in 1900 and 1937, and has housed the Education department and administration offices. It currently houses the departments of History, Philosophy, and Religion.
The Outdoor Theater was built as a gift of the Class of 1915, and designed by one of its members and the university's first architecture graduate, Leon LeGrand. The Art Deco stage was nearly demolished and replaced in 1977, but protests prompted its renovation and the addition of concrete terraced seating.
Riggs Hall was built to replace Mechanical Hall, which burned in 1926. It was designed by Architecture department chairman Rudolph E. Lee. The departments of Architecture, Civil Engineering, Electrical Engineering, and Mechanical Engineering were the first tenants. Architecture and Civil Engineering moved into the new Structural Science Building in 1958, but Electrical and Mechanical Engineering are still located in the building.
Sirrine Hall was built to replace Godfrey Hall as the Textile building. It was one of 8 buildings built between 1936 and 1938, and designed by Rudolph E. Lee in an Italian Renaissance Revival style. Today, the building houses the College of Business.