Alanís castle has Arab origins. The town was conquered by Ferdinand III in 1249 and the castle was rebuilt in 1392. It has a hexagonal floor plan, with a tower and barbican, which has now disappeared. Its walls are 2.3 metres wide and 6.5 metres high, leaving only one access to the enclosure on the north side, from where the village can be seen.
Th castle was attacked by the French during the Napoleonic occupation, who dynamited one of its walls, the southwest one, and the ruins are still preserved today.
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.