Mladá Boleslav Castle, originally built in the first half of the 14th century, has gone through many development stages. Despite the Renaissance castle and the period of devastation after the Thirty Years' War, the army took over the building for 200 years and converted it into a barracks. Between 1940 and 1943, Jews from the wider Boleslav area were interned here. Today it is the seat of the Museum of Mladá Boleslav and Archive.
The castle was used as a seat of castle wardens and later clerks serving the nobility and the nobility itself.
After the Thirty Years’ War, the castle became the property of the town and decayed significantly. In the mid-18th century, the entire building was reconstructed to serve as army barracks and was used by the army until 1953. After this, the castle served as a textile warehouse until 1972.
The Museum of the Mladá Boleslav region currently operates in the castle.
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.