Erfurt Cathedral, dedicated to St. Mary, is a late Gothic cathedral which replaced the church built on this site for Bishop Boniface in 742. Martin Luther was ordained in the cathedral in 1507.
The architecture of the Erfurt Cathedral is mainly Gothic and stems from around the 14th and 15th centuries. There are many things of note as far as the architecture is concerned, not least the stained glass windows and furnishings of the interior of the cathedral. The central spire of the three towers that sit aloft the cathedral harbours the Maria Gloriosa which, at the time of its casting by Geert van Wou in 1497, was the world's largest free-swinging bell. It is the largest existing medieval bell in the world. It is known to have purity and beauty of tone.
The cathedral houses many rare and rich furnishings and sculptures, including the tomb of the bigamous Count von Gleichen, accompanied by both of his wives, a stucco altar, a bronze candelebra of Romanesque antiquity called Wolfram, the oldest free standing cast work in Germany, and, out on the porch, several statues of the Wise and Foolish Virgins.
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.