Sielecki Castle is located on the left bank of the Czarna Przemsza River. Originally a defensive fortification, the castle expanded in 1620 into a four-wing complex with corner towers, perhaps using earlier buildings. The castle was built of broken limestone and brick. Storey building with basement. After the fire in 1824, the castle was rebuilt in 1832, but the east wing with the entrance gate was demolished and the moats were filled. Despite these changes, the original defensive character is evidenced by the shape of the block, four corner towers and projections on the extension of the side wings. It is currently a three-winged building with an open courtyard.
In 1994 the city of Sosnowiec took over the destroyed castle. Currently, the castle houses the Sosnowiec Art Center. This local government institution co-creates the cultural life of the city by organizing exhibitions, concerts and various culture-forming meetings.
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.