Hannas Church was likely built during the latter part of the 12th century and possesses a well-preserved medieval character. The original church was a typical Romanesque structure with a semi-circular apse, choir, and nave. In the 15th century, the church was vaulted, and a robust stair-gable tower in the west, along with a porch in the north, were added.
The benches feature old folk paintings and are marked with farm numbers. The church's oldest item is the richly sculpted baptismal font by Sighraf. The font is as old as the church itself, adorned with biblical figures on the base and scenes from the Bible on the basin.
The altarpiece dates back to 1651. Additionally, there is a triumph crucifix from around the year 1300 in the church.
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.