The Pont Saint-Bénézet, also known as the Pont d'Avignon, is a famous medieval bridge in the town of Avignon. It was built between 1177 and 1185. This early bridge was destroyed forty years later during the Albigensian Crusade when Louis VIII of France laid siege to Avignon. The bridge was rebuilt with 22 stone arches. It was very costly to maintain as the arches tended to collapse when the Rhône flooded. Eventually in the middle of the 17th century the bridge was abandoned.
The four surviving arches on the bank of the Rhône are believed to have been built in around 1345 by Pope Clement VI during the Avignon Papacy. The Chapel of Saint Nicholas sits on the second pier of the bridge. It was constructed in the second half of 12th century but has since been substantially altered. The western terminal, the Tour Philippe-le-Bel, is also preserved.
The bridge was the inspiration for the song Sur le pont d'Avignon and is considered a landmark of the city. In 1995, the surviving arches of the bridge, together with the Palais des Papes and Avignon Cathedral were classified as a World Heritage Site.
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.