The Old City of Berne, federal city of Switzerland and capital of the canton of Berne, is located on the Swiss plateau between the Jura and the Alps. Founded in the 12th century according to an innovative foundation plan, and located on a hill surrounded by the River Aar, Berne has experienced an expansion in several stages since its foundation. This development remains visible in its urban structure, mainly tributary to the medieval establishment and its clearly defined elements: well-defined wide streets, used for the market, a regular division of built sections, subdivided into narrow and deep parcels, an advanced infrastructure for water transportation, impressive buildings for the most part dating from the 18th century mainly built from sandy limestone, with their system of arcades and the facades of the houses supported by arches. Public buildings for secular and religious authorities were always located at the periphery, a principle also respected in the 19th century during the construction of the large public monuments confirming the function of Berne as the federal city from 1848.
Berne developed along the lines of exceptionally coherent planning principles. The medieval establishment of Berne, reflecting the slow conquest of the site by urban extensions from the 12th to the 14th century, makes Berne an impressive example of the High Middle Ages with regard to the foundation of a city, figuring in the European arena among the most significant of urban planning creations. The features of Berne were modified to reflect the modern era: in the 16th century, picturesque fountains were introduced to the city and restoration work was carried out on the towers and walls and the cathedral was completed. In the 17th century, many patrician houses were built of sandy limestone, and towards the end of the 18th century, a large part of the constructed zones underwent transformation. However, this continual modernization, right through to the present day, was carried out observing the need to conserve the medieval urban structure of the city. The Old City of Berne is a unique example demonstrating a constant renewal of the built substance while respecting the original urban planning concept, and presenting a variation of the late Baroque on a theme of High Middle Ages.References:
The Mosque–Cathedral of Córdoba, also known as the Great Mosque of Córdoba and the Mezquita is regarded as one of the most accomplished monuments of Moorish architecture.
According to a traditional account, a small Visigoth church, the Catholic Basilica of Saint Vincent of Lérins, originally stood on the site. In 784 Abd al-Rahman I ordered construction of the Great Mosque, which was considerably expanded by later Muslim rulers. The mosque underwent numerous subsequent changes: Abd al-Rahman II ordered a new minaret, while in 961 Al-Hakam II enlarged the building and enriched the Mihrab. The last of such reforms was carried out by Almanzor in 987. It was connected to the Caliph"s palace by a raised walkway, mosques within the palaces being the tradition for previous Islamic rulers – as well as Christian Kings who built their palaces adjacent to churches. The Mezquita reached its current dimensions in 987 with the completion of the outer naves and courtyard.
In 1236, Córdoba was conquered by King Ferdinand III of Castile, and the centre of the mosque was converted into a Catholic cathedral. Alfonso X oversaw the construction of the Villaviciosa Chapel and the Royal Chapel within the mosque. The kings who followed added further Christian features, such as King Henry II rebuilding the chapel in the 14th century. The minaret of the mosque was also converted to the bell tower of the cathedral. It was adorned with Santiago de Compostela"s captured cathedral bells. Following a windstorm in 1589, the former minaret was further reinforced by encasing it within a new structure.
The most significant alteration was the building of a Renaissance cathedral nave in the middle of the expansive structure. The insertion was constructed by permission of Charles V, king of Castile and Aragon. Artisans and architects continued to add to the existing structure until the late 18th century.
The building"s floor plan is seen to be parallel to some of the earliest mosques built from the very beginning of Islam. It had a rectangular prayer hall with aisles arranged perpendicular to the qibla, the direction towards which Muslims pray. The prayer hall was large and flat, with timber ceilings held up by arches of horseshoe-like appearance.
In planning the mosque, the architects incorporated a number of Roman columns with choice capitals. Some of the columns were already in the Gothic structure; others were sent from various regions of Iberia as presents from the governors of provinces. Ivory, jasper, porphyry, gold, silver, copper, and brass were used in the decorations. Marvellous mosaics and azulejos were designed. Later, the immense temple embodied all the styles of Morisco architecture into one composition.
The building is most notable for its arcaded hypostyle hall, with 856 columns of jasper, onyx, marble, granite and porphyry. These were made from pieces of the Roman temple that had occupied the site previously, as well as other Roman buildings, such as the Mérida amphitheatre. The double arches were an innovation, permitting higher ceilings than would otherwise be possible with relatively low columns. The double arches consist of a lower horseshoe arch and an upper semi-circular arch.