The area around Palazzolo Acreide has been inhabited since ancient times. The old city was probably destroyed by the Arabs, in the first half of the 9th century. The new city was built around a Norman castle, which no longer exists. An earthquake in 1693 destroyed almost the entire city, which was slowly rebuilt in the following centuries.
Thanks to the many fascinating buildings in Baroque style, Palazzolo Acreide has been incorporated in the UNESCO World Heritage site of Late Baroque Towns of the Val di Noto since 2002.
The city has many late Baroque style churches, inculding The Chiesa Madre ('Mother Church'). The first document attesting its existence dates from 1215, when the church was dedicated to St. Nicholas. It was largely rebuilt and redecorated after the earthquake of 1693, with a Neo-classicist façade. The interior is on the Latin cross plan, with a nave and two aisles decorated with precious polychrome marbles.
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.