Basilica of the Visitation was built between 1715 and 1723. The basilica was given the status of a basilica minor by Pope Pius XI in 1936. The present basilica is located on a hill, where in the twelfth-century, stood a wooden figure of Mary, the Mother of God. According to a chronicle from 1218, the blind Jan from Raszewo regained his sight there. After the event, many pilgrims began visiting the area. Shortly afterwards, an altar, together with candlesticks and a baptismal font, was placed by the statue under the tree. In 1263, a wooden church was built on the hill.
In 1512, Ludwik von Panwitz raised a greater church, constructed out of brick. However, the church was destroyed during the Thirty Years' War. Between 1695 and 1711, a new church was built, but quickly began to crumble and was deconstructed in 1714. Between 1715 and 1723, another church was built by Count Franciszek Antony von Goetzen, which stands to the present day.
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.