conventional classrooms are located on the second floor and elsewhere throughout the building. The first floor also serves as the home to the offices of the Chancellor, Executive Vice Chancellor, and other administration offices, as well as the Nationality Rooms Gift Shop. The fourth floor, which was previously home to the main stacks of the university's library and the McCarl Center for Nontraditional Student Success, now houses a mix of interdisciplinary studies programs. The fifth floor originally housed the main borrowing, reference, and reading rooms of the university library, and now houses the Department of English. The Pitt Humanities Center is housed on the sixth floor. The University Honors College is located on the 35th and 36th floors. The Cathedral of Learning houses the Department of Philosophy, considered one of the top five in the United States, and the Department of History and Philosophy of Science, consistently ranked at the top of the field. Other departments in the Cathedral include English, Religious Studies, Theatre Arts, and the School of Social Work which maintains the highest classrooms in the building located on the 23rd floor. Floors 38–40 are closed to the general public, as they contain electrical wiring for the building, as well as the Babcock Room, a large conference room on the 40th floor used for meetings, seminars, and special events and which provides a panoramic view of downtown Pittsburgh and the rest of the university. The 40th floor balcony also houses a nesting pair of Peregrine falcons. A view from the top is available via a webcam. Golden lights, dubbed "victory lights," surround the outside of the highest floors and are lit following Pitt football wins and other notable victories, giving the upper part of the Cathedral an amber glow. The top of the building serves as the site for the transmitter of the student-run radio station WPTS-FM as well as the amateur radio repeater W3YJ which is run by the Panther Amateur Radio club on a frequency of 443.45 MHz. The building is one of the host buildings of the Pennsylvania Mock Trial Competition. History In 1921, John Gabbert Bowman became the tenth chancellor of the university. At that time, the school consisted of a series of buildings constructed along Henry Hornbostel's plan for the campus and included "temporary" wooden structures built during World War I. He then began to envision a "tall building", that would be later