Korskirken is located at the intersection of the streets Kong Oscars gate and Nedre Korskirkeallmenning and dates back to the latter half of the 12th century. The name of the church refers to the True Cross (and not to its cruciform plan), and is usually rendered in English as 'Holy Cross Church'. This is because it was, as one of only a Norwegian churches, in possession of a relic from the True Cross. This relic was later stolen by the Danish king, along with several other relics from all over the country, during the Reformation.
Korskirken was first mentioned in Sverris saga from 1185. At the time of construction, the church was situated on the shore of Vågen, probably marking the southern border of settlement in Bergen. Korskirken was damaged in the fires of 1198, 1248, 1413, 1582, 1623, 1640 and 1702; the church originally had two towers, but one was destroyed in the 1582 fire and never rebuilt. It was originally built with straight rectangular plan. The church got its cruciform plan when transepts were added around 1615-1623.
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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.