Avioth has been a place of pilgrimage since the early 12th century and it was this that led to the building of the vast Church of Our Lady of Avioth. It is a masterpiece of Flamboyant Gothic architecture, dating from the second half of the 13th century, and is often described as 'lacework in stone'. It is famous for its Recevresse, a unique work of Gothic art. We know it used to receive offerings from the pilgrims, but the reason for its construction remains uncertain.
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.