Covering over 2 hectares, the Klementinum baroque fortress enclosed a college, schools, churches, a library, a theatre, an observatory and a printing shop. When the Jesuit Order was dissolved in 1773, the complex was taken over by the university. Today, Klementinum belongs to the National Library. The Chapel of Mirrors, where Mozart once played, is now a popular venue for chamber music and concerts. Worth a visit is the baroque National Library and Astronomical Tower.
Location: Klementinum 190, Old Town
Opening hours: May-Oct Mon—Fri 2-7, Sat-Sun 10-7: Mar-Apr, Nov—Dec Mon—Fri 2-6, Sat-Sun 11-7
Library: Marianske náměstà 40 , 9.00-19.00 Mon—Sat