The Rudenz tower was built in the early 13th century. It protected the Gotthard road (Gotthardstrasse) and housed an Imperial customs post. In the 14th century, the right to collect Imperial customs was owned by the Lords of Attinghausen. The first known owner of the tower was Baron Johann von Attinghausen. After Baron Johann von Attinghausen's death around 1360, ownership passed to the Haslital Knight of Rudenz (by virtue of marriage). The tower thus came to be known as the Castle of Rudenz. The Knights of Rudenz were in the service of the Freiherr of Brienz-Ringgenberg and owned castles in Meiringen and Giswil before inheriting the tower at Flüelen. The inheritance was disputed and Johann von Rudenz finally took possession of the castle in the 1370s. As part of receiving the inheritance on 19 June 1365 he granted half the collected tolls to the Canton of Uri. He ruled there for only a few years and died, the last of his line, before 1383.
After the death of Johann von Rudenz, the castle passed through a number of owners. In the first half of the 17th century it was owned by Landammann Johann Heinrich von Brunnen. In 1727 it was acquired by Johann Joachim Epp. Then, in 1815 the Zgaggen family purchased it for 1,900 gulden. They repaired the old tower and returned it to a livable condition. They filled in the old dry moat and planted extensive gardens around the castle. However, over the following centuries, they had to sell off parts of the land and the gardens were replaced with streets and buildings as Flüelen grew. The castle was later sold to the municipality of Flüelen. In 2005 the municipality opened a public park on the castle grounds and opened the great hall for events.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.