The Barbara Baths (Barbarathermen) are a large Roman bath complex designated as part of the Roman Monuments, Cathedral of St. Peter and Church of Our Lady in Trier UNESCO World Heritage Site. The Barbara Baths were built in the second century AD. The extensive ruins were used as a castle in the Middle Ages, then torn down and recycled as building material until the remains were used for constructing a Jesuit College in 1610.
Only the foundations and the subterranean service tunnels have survived, but the technical details of the sewer systems, the furnaces, the pools, and the heating system can be studied better than in the other two baths of Trier.
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.