The Roman bridge of Córdoba was originally built in the early 1st century BC across the Guadalquivir river, though it has been reconstructed at various times since. Most of the present structure dates from the Moorish reconstruction in the 8th century.
Currently, after the Islamic reconstruction, has 16 arcades, one fewer than originally, and a total length of 247 meters. The width is around 9 meters.
The Via Augusta, which connected Rome to Cádiz, most likely passed through it. During the early Islamic domination the Muslim governor Al-Samh ibn Malik al-Khawlani ordered a bridge to be built on the ruins of what was left of the old Roman construction. In the Middle Ages, the Calahorra Tower and the Puerta del Puente were built at the bridge's southern and northern ends, respectively (the latter is now a 16th-century reconstruction). The bridge was reconstructed and expanded to its current size. The arches depict the famous Moorish architecture that dominates the city's scenery. In the 17th century, a sculpture depicting St. Raphael was put in the middle of the bridge, executed by Bernabé Gómez del Río.
During its history, the bridge was restored and renovated several times (in particular in the 10th century), and now only the 14th and 15th arches (counting from the Puerta del Puente) are original.
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.