The castle of Petrelë has a rich history, containing a tower which was built in the 6th century AD.
It is one of the tourist locations close to Tirana that attracts a great number of visitors. The Castle, the prominent wooden structure is a restaurant, is perched on a rocky hill, above the village with the same name. It has a triangular shape with two observation towers. Although it was first built in ancient times, the present building dates from the 15th century.
The Petrela Castle was part of the signaling and defense system of Krujë Castle. The castles signaled to each other by means of fires. During Skanderbeg’s fight against the Ottomans, the Petrela Castle used to be under the command of Mamica Kastrioti, Skanderbeg's sister. Today there is a restaurant inside the castle. The castle site has views of the Erzen valley, the hills, olive groves, and surrounding mountains.
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.