Venosa Cathedral was constructed 1470 and 1502 by order of Duke Pirro del Balzo, who was responsible for the urban transformation of Venosa in the last decades of the 15th century. The upper part consists of two octagonal prisms, which form the base of the 10-metre high pyramidal spire. The lower part consists of three superimposed parallel epipeds, the first of which has a quadrangular base.
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.