West from the Rynek is the university area, whose first element was the fifteenth-century Collegium Maius building at ul. Jagiellońska 15. Now it’s the University Museum (Mon–Fri 11am–2.20pm, Sat 11am–1.20pm; 16zł). Entrance is by guided tour only – the museum office will sign you up for the next English-language tour, which depart at regular intervals throughout the day. Inside, the ground-floor rooms retain the mathematical and geographical murals once used for the teaching of figures like Copernicus, one of the university’s earliest students.