The Château de Mirabeau is a medieval castle overlooking the village of Mirabeau. Its origins date back to the 12th century, when it was first mentioned as a fortified structure. Initially owned by the Abbey of Saint-André, the castle underwent various changes over the centuries. The castle played a crucial role in the local economy, especially during the late Middle Ages, by controlling a key river crossing.
The current structure, likely built in the late 16th to early 17th century, features a quadrilateral layout with four circular towers. It has been remodeled and expanded, particularly in the 18th century, and includes a chapel and various living quarters.
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.