Albi Cathedral is the seat of the Roman Catholic Archbishop of Albi a UNESCO World Heritage Site. It was built as a fortress in the aftermath of the Albigensian Crusade. Begun in 1287 and under construction for 200 years, it is claimed to be the largest brick building in the world.
The present cathedral was preceded by other buildings. The first dated from the fourth century and in 666 was destroyed by fire. The second is recorded in 920 by the name of Saint Cecilia, the present-day patroness of musicians. It was replaced in the thirteenth century by a Romanesque cathedral in stone.
The Brick Gothic cathedral was constructed in brick between 1287 and 1480 in the wake of the Cathar Church, a Christian non-trinitarian dualist movement with an episcopal see at Albi around 1165 AD. Pope Innocent III initiated a brutal crusade (1209–1229) to extinguish Catharism in southern France, with great loss of life to area residents. In the aftermath of the bloodshed, the cathedral's dominant presence and fortress-like exterior were intended to convey the power and authority of the trinitarian Roman Catholic Church. The instigator of the cathedral's construction was Bernard de Castanet, Roman Catholic Bishop of Albi and Inquisitor of Languedoc. Work on the nave was completed about 1330.
The cathedral is built in the Southern Gothic Style. As suitable building stone is not found locally, the structure is built almost entirely of brick. Notable architectural features include the bell-tower (added in 1492), which stands 78 metres tall, and the doorway by Dominique de Florence (added circa 1392). The nave is the widest Gothic example in France at 18m. The interior lacks aisles which are replaced by rows of small chapels between brick internal buttresses, making Albi a hall church. Compared with regular Gothic, the buttreses are almost entirely submerged in the mass of the church. The principal entry is on the south side through an elaborate porch entered by a fortified stair, rather than through the west front, as is traditional in France.
The elaborate interior stands in stark contrast to the cathedral's military exterior. The central choir, reserved for members of the religious order, is surrounded by a roodscreen with detailed filigree stone work and a group of polychrome statues. Below the organ, a fresco of the Last Judgement, attributed to unknown Flemish painters, originally covered nearly 200 m² (the central area was later removed). The frescoes on the enormous vaulted ceiling comprise the largest and oldest ensemble of Italian Renaissance painting in France.
The cathedral organ, the work of Christophe Moucherel, dates from the 18th century.
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.