Samtavisi is an eleventh-century Georgian Orthodox cathedral 45km from Tbilisi. According to a Georgian tradition, the first monastery on this place was founded by the Assyrian missionary Isidore in 572 and later rebuilt in the 10th century. Neither of these buildings has survived however. The earliest extant structures date to the eleventh century, the main edifice being built in 1030 as revealed by a now lost stone inscription. The cathedral was built by a local bishop and a skilful architect Hilarion who also authored the nearby church of Ashuriani. Heavily damaged by a series of earthquakes, the Cathedral was partially reconstructed in the 15th and 19th centuries. The masterly decorated eastern façade is the only survived original structure.
The Samtavisi Cathedral is a rectangular 4-piered cruciform domed church. It illustrates a Georgian interpretation of the cross-in-square form which set an example for many churches built in the heyday of medieval Georgia. The exterior is distinguished by the liberal use of ornamental blind arcading. The apses do not project, but their internal position is marked by deep recesses in the wall. In contrast to earlier Georgian churches, the drum of the dome is taller surmounted by a conical roof. Artistically, the most rounded portion of the church is its five-arched eastern façade, dominated by the two niches and enlivened by a bold ornate cross motif.
Beyond the main church, the Samtavisi complex includes a badly damaged two-storied bishop’s residence, a small church (5.8х3.2m), and a three-storied belltower (5.7х7.3m) attached to the 3-5m high fence made of stone and brick. All these structures date to the 17th-18th centuries.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.