Medina de las Torres Castle origins date back to the 14th-16th centuries. It was built on a low hilltop by the Order of Santiago in the 14th century as the headquarters of the Encomienda de Medina de las Torres.
In spite of having been restored on a number of occasions, this fortress is in quite a deteriorated condition. Even so, you can still appreciate the remains of the masonry ramparts, with a ditch and towers at the sides for the defence of this elliptically shaped castle. The entrance is on the southeast side, protected by two square towers. The main access to the interior was flanked by one circular tower and another which was semicircular. In this area there were storerooms, stables and a chapel, as well as a water cistern.
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.