Mata Bejid Castle is a rectangular fortress built originally during Muslim era. It has two towers on both sides, quite deteriorated, the one on the North consists of an interior room covered with a pointed vault (keep), and the one on the South has a low solid body and the upper one habitable. The castle is divided into two large areas, the main square (it was converted in recent times into a farmhouse, of which the arches of the zahúrdas that overlooked this large courtyard are preserved) and the Islamic fortress (a higher niver with respect to to the rest of the castle).
References: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.