Monterrei Castle is located a high part of the valley, near the town of Verín. It was built in the 12th century by Alfonso Henríquez. It was extremely important in the epoch of Peter the Cruel. In the 16th century it was used by Philip the Handsome for a meeting with Cardinal Cisneros. It was built from stone with evenly dressed ashlars. The most notable exterior features are the two towers: the Ladies Tower and the Keep The Keep was built by Sancho Sánchez de Ulloa in 1482. The castle is now a Parador hotel.
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.