Zamora Castle features Pre-Roman foundations and a Romanesque general structure. It was built between the 10th and 12th centuries. According to the chronicles it was ordered to be built by Alfonso II of Asturias, although it would probably be done by Ferdinand I of León (in reign 1056–1065). The castle stands northwest of the Cathedral, with magnificent views of the town and the river from the keep.
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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.