The Venetian Castle was built during the 15th century in Split. Built just south-west of the Diocletian's Palace along the shoreline, the castle had an irregular pentagonal shape with three towers facing north and overlooking the city. The decision to build the castle was made in 1424, however, it wasn't until 1441 that it was actually built on the grounds of a demolished monastery. By the early 16th century, the castle was in poor condition and it wasn't until the first half of the 17th century that work on improving it began.
By the early 19th century, the castle had lost its defensive purpose and the southern walls were demolished between 1806 and 1807 on the orders of Auguste de Marmont during the Napoleonic Wars. Presently, what remains of the castle is the large central tower and the smaller eastern tower with the wall connecting them, both located on the Radić Brothers Square (Trg braće Radić).
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.