The 12th century fortified church of Santa María de Ujué stands on the highest point of the town. It is a fine example of Romanesque architecture, with Gothic additions.
The church originates back to the 9th century when Iñigo Arista ordered a temple to be built next to the fortress that this king ordered to be built. This first pre-Romanesque church was demolished to erect a new Romanesque building in the 12th century under the auspices of King Sancho Ramírez. In the 14th century, Charles II ordered part of the Romanesque naves to be demolished in order to build a single Gothic building. The choir, the undertowers, the crenellated towers and the façades were also built, as well as the church was surrounded by promenades and walls. All of this gave the complex the appearance of a fortress that it still has today. Interred in the church is the heart of Charles II of Navarre.
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.