The extensive baroque campus - built from the half of the 16th century till the half of the 18th century and was built by K. I. Dienzehofer and is decorated by frescoes and portraits of the important members of the Jesuit Order. It was the Jesuit College. Nowadays it is a seat of the National library and the State technical library. The Astronomical Tower and Baroque library hall are making part of this campus, open to the public from 2000.