A delightfully-accessible 13th-century fortress that now lies in ruins above Bosanska Krupa, this should be your first stop when in town. There isn’t a huge amount to see within the ruins (they are ruins, after all), but that intangible sense of history that only decrepitude can create is most certainly here. The views are stunning too, extending over both side of the city with the rivers playing a starring role. The fortress was originally in Croatian hands, although it eventually fell to the Ottomans in the 16th century, at which point the town began to grow. The Ottomans were sure to keep this spot well-stocked, as it was an important stronghold for their ambitions to spread west, although it never really worked out for them in that respect. This is history, intangible history, with added beauty.
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.