The rock carvings in Glösa were described as early as 1685. The carvings are estimated to be 6200 – 5500 years old. Some 60 figures – all depicting elks – were carved into the rocks surrounding the stream by prehistoric trappers. It is believed that the petroglyphs of Glösa could be 3000-4000 years older than the oldest known rock carvings in southern Sweden, which were made by farmers during the bronze age. There is an open-air museum called The Glösa rock art center.
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.