The original cathedral of Arras, constructed between 1030 and 1396, was one of the most beautiful Gothic structures in northern France, until it was destroyed in the French Revolution. The cathedral was the resting place of Louis de Bourbon, Légitimé de France, illegitimate son of Louis XIV and Louise de La Vallière.
In 1833 the church of the former St. Vaast's Abbey was rebuilt in classical style as a replacement cathedral. The design was chosen by the former abbot of St. Vaast's, the Cardinal de Rohan, and is of remarkable simplicity. Arras Cathedral was destroyed by shelling in April 1917, during the run-up to the Nivelle offensives of World War I. It was subsequently rebuilt in its previous form.
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.