Yarra. This campus is split into five building blocks. These are: the Twenties Building (built in 1927, refurbished in 1995), the Nineties Building (built in 1992), the Round Building, the Junior Science Block (built in the 1970s) and the Art Building (built in 2008). The Twenties Building is a heritage-listed, three-storey rendered brick building in the Collegiate Gothic style, which has been nicknamed by students and ex-students as the "Castle on the Hill" based on its appearance and elevated position of the site. The base level contains the school canteen, the dining hall (with microwaves and a rowing boat and canoe hanging inside), two IT rooms and four rooms devoted to mathematics. The ground level serves multiple purposes. The south wing of the ground floor generally functions as geography and mathematics rooms. The north wing of the ground floor is devoted to physics with two large classrooms and a lecture room with raked seating. Between the north and south wings is the school's Memorial Hall, the principal's office and the offices of the assistant principals. The first floor of the Twenties building is also split into two wings. The south wing is assigned to history, LOTE and politics. The north wing is assigned to chemistry. The Nineties Building, built in the 1990s under principal Ray Willis, includes four floors, and abuts Chapel Street. The ground floor and first floors are used by the South Yarra Sports Centre, an organisation that provides its facilities both to the outside public and to students of Melbourne High. This ground floor contains a gym, including basketball courts and a swimming pool, and the first floor contains a weights room and cardio room. The second floor contains rooms used for biology, commerce related subjects and music. The third floor is used for English and also contains the school's library. (formerly in the R building) The Science Block consists of four science labs split over two levels. These science rooms are generally used only for Year 9 and Year 10 general science, with other rooms being used for the more specific VCE subjects of chemistry, physics and biology. The Arts Building was completed in the year 2009. It consists of four floors, each containing multiple rooms devoted to the visual and performing arts. These also contain computers and media rooms. In addition, the school's grounds include a hockey field, tennis courts, an oval (The Woodfull-Miller oval)