Toledo was walled by Romans, and a lot of its stones were reused later in built walls, as the original perimeter was subsequently tripled. The Visigothic King Wamba renewed the Roman fortifications, sculpting in its gates an inscriptions. The inscriptions were destroyed by the Muslims, and restored in 1575 by the Corregidor Juan Gutiérrez Tello.
The Arabs widened the city and the walls. After the Reconquista, the walls were again advanced in outer line and new gates were constructed. The gates and towers of the Walls of Toledo have survived until these days.
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.