Arles-sur-Tech is best known for its abbey, which allegedly holds the relics of Saints Abdon and Sennen in a sarcophagus called Sainte Tombe, traditionally believed to have been brought from Rome 10th century. Its waters are traditionally believed to hold miraculous healing properties.
The Benedictine abbey of Sainte-Marie was founded in 778 and is the oldest Carolingian abbey in Catalonia. The main square contains the houses which were the first to be built around the abbey. The Abbey Sainte-Marie has a beautiful gothic cloister built in the 13th century and a large and impressive 18th century organ. Its most curious item though is a 4th century sarcophagus which once contained the relics of Saints Abdon and Sennen.
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.