The Nauvo Church was built probably between years 1430 and 1450 and it's dedicated to St. Olaf. The mural paintings were made in the 17th century. The most significant artefact in church is the crucifix from the beginning of 15th century. The oldest music instrument in Finland, organs called "Nauvon positiivi" (built probably in 1664), was originally in the Nauvo church. today it's preserved to the National Museum of Finland.
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.