Breitenlohe is well known is the castle from the 16th century. It was originally a moated castle, but the moat is dry. It has six towers, in two of them are staircases. Before the castle was built in 1569, there was already a kind of castle in the same place. The first castle was built in 1340 for Albrecht von Hohenlohe and later sold to the Family von Vestenberg, who renovated the castle and later rebuilt it. The castle is not open to the public.
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.