The Castle of Arnóia is a medieval castle in civil parish of Arnóia, municipality of Celorico de Basto, the district of Braga. It was built in the late 11th or early 12th century, probably to defend the local monastery. The abandonment occurred from 1717, when elites left the small village of Basto, moving the seat of the county to the parish of Britelo, where today is located Celorico de Basto.
Today there are four defensive elements survived: the watchtower (whose rooftop and set of battlements were reconstructed in the 20th century), the quadrangular tower, a single door and the tank.
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.