The old town of Drežnik is mentioned in the historic sources back in the 12th century. Its history has been marked by wars and its different rulers. The historic events in the area have mostly been marked by constant wars, which is also the reason that it did not develop as a trading place or a settlement but rather as a defence fortress. After 1830, the Austrian monarch sold the fortress to a private trader, who started demolishing the walls and selling stone as construction material. The defence tower has been renovated and from there the visitors can enjoy in the view over the canyon of the Korana river and the surrounding mountains and learn something on the history of this always dynamic border region.
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.