Even if it’s relatively unknown nationwide due to its position in Hasenbachtal, Reichenberg Castle is one of the most important and most unusual castle complexes in the whole of Rhineland Palatinate. It has considerable fabric; many aspects of late mediaeval castle building can be deduced from this monument from the early 14th century. Especially the defining, Mannerist shield wall with the - for that time - unusually high flanking towers - the northern one only collapsed around 40 years ago - represents a special feature in castle-building of the late Middle Ages. Preserved to this day, the hall with its ceiling resting on cubiform capitals testifies to the high representative value of the complex. This is how the builders, Count Wilhelm von Katzenelnbogen and his son Wilhelm II created an architectural highlight. The ruin is in private ownership and can be visited from the outside only.
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.