St. Martin's Church was founded in 1229. The Gothic brick building has many colourful windows depicting biblical scenes. Of particular interest are the carved pulpit and the baroque organ front.
The bells of St. Martin's ring the well-known hymn 'Praise to the Lord, the Almighty', written in the 17th century by Joachim Neander, who was the church's pastor at the time. He gave his name to the Neanderthal valley, now famous for the discovery of the remains of Neanderthal Man.
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.