Floors Castle is the seat of the Duke of Roxburghe. Despite its name it is an estate house rather than a fortress. It was built in the 1720s by the architect William Adam for Duke John, possibly incorporating an earlier tower house. In the 19th century it was embellished with turrets and battlements, designed by William Playfair, for The 6th Duke of Roxburghe. Floors has the common 18th-century layout of a main block with two symmetrical service wings.
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.