Collegium Maius is a magnificent example of Gothic architecture. The ground floor is taken up by the lectoria, where instruction was held, and the rooms of the first floor – Libraria, Stuba Communis, and the Assembly Hall – serve important functions of the University to this day, as they are the venues of the sessions of the Senate, elections of rectors, and important meetings and conferences. Until the end of the 18th century, Collegium Maius was home to the professors of theology: doors to their residences can still be seen in the quadrangle.