The St. Stephen's Cathedral is one of the most important cultural sites in the city. It is protected as a cultural monument of the Czech Republic.
Located on a hill in the place of an older church (originally a basilica) The temple was built in Romanesque style in 1057 and rebuilt in the 14th century in the Gothic style. In the presbytery is a large altar dedicated to St. Stephen, patron of the cathedral.
In the years 1662 to 1663 the original building was destroyed and in the years 1663-70 present cathedral was erected. The cathedral was consecrated in 1681. Today's cathedral tower replaced wooden baroque belfry in the years 1883-89.
There have been various modifications and repairs especially in 1716, 1778, 1825 and 1892.
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.