St. John's Church was probably built in the first third of the 14th century as a three-nave basilica. The church was damaged in the Russian- Livonian War in the 16th century; lightning has set its spire on fire several times. Some parts of the church were destroyed in the Great Nordic War in 1708.
In the end of 19th century external walls of St. John's Church were cleaned of limewash, the original shape of the choir windows was restored and new external figures were made of instead of the destroyed ones. The building was reconstructed in the Neo-classicism style in 1930’s. During World War II, the church caught fire. The damage was so extensive that an unknown and rich interior decoration was discovered the beneath the destroyed plaster sheet. There have been over a thousand sculptures in the internal and external walls of the construction. There is no other brick church decorated with so much terracotta plastic in Europe.
There are fifteen figures in the triple arch niches of the fronton which represent Judgement Day. On the facade and two sides of the tower there are other figures since the tower's frieze consisting of quaternion foils with a human head continuing in each quaternor foil on the sides of the longitudinal building as well. There are friezes and niches decorated with sculptures in the interior as well.
However, the western wall, with numerous niches with sculptures and pseudotriforium located above the arcades in the niches of which there are figures sitting on a throne, deserves special attention. In the eastern wall, above the triumphal arch, there is a large terracotta group: Christ on a cross and Mary and John beneath the cross.
Reference: Tartu Tourist Information
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.