The oldest parts of Guldrupe church is the nave, dating from the late 12th century. Oak planks decorated with dragons have however been found on the site, and indicate that there may have existed an earlier, wooden church on the spot. The tower dates from the early 13th century, and from the end of the same century dates the un-proportionally large choir and sacristy. The choir replaced an earlier, smaller choir, but plans to replace also the nave were never carried out. The church has not been substantially altered since the Middle Ages. The windows date from 1865 and the church was renovated in 1964-65.
The church is built of limestone. The nave and tower are Romanesque in style, while the somewhat later and larger choir is Gothic. The pyramidal tower spire is unusual in that its construction is largely original.
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The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.