what is the style of arch found at the great mosque at cordoba
Mosque–Cathedral of Córdoba The building is most notable for its arcaded hypostyle hall, with 856 columns of jasper, onyx, marble, and granite. These were made from pieces of the Roman temple which had occupied the site previously, as well as other destroyed Roman buildings, such as the Mérida amphitheatre. The double arches were a new introduction to architecture, 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. The famous alternating red and white voussoirs of the arches were inspired by those in the Dome of the Rock.[31] and also resemble those of the Aachen Cathedral, which were built almost at the same time. Horseshoe arches were known in the Iberian Peninsula since late Antiquity, as can be seen on the 3rd-century "Estela de los Flavios", now in the arqueological museum of León. A centrally located honey-combed dome has blue tiles decorated with stars.
Hagia Sophia Hagia Sophia (/ˈhɑːɡiə soʊˈfiːə/; from the Greek: Αγία Σοφία, pronounced [aˈʝia soˈfia], "Holy Wisdom"; Latin: Sancta Sophia or Sancta Sapientia; Turkish: Ayasofya) was a Greek Orthodox Christian patriarchal basilica (church), later an imperial mosque, and is now a museum (Ayasofya Müzesi) in Istanbul, Turkey. From the date of its construction in 537 AD, and until 1453, it served as an Eastern Orthodox cathedral and seat of the Patriarch of Constantinople,[1] except between 1204 and 1261, when it was converted by the Fourth Crusaders to a Roman Catholic cathedral under the Latin Empire. The building was later converted into an Ottoman mosque from 29 May 1453 until 1931. It was then secularized and opened as a museum on 1 February 1935.[2] Famous in particular for its massive dome, it is considered the epitome of Byzantine architecture[3] and is said to have "changed the history of architecture".[4] It remained the world's largest cathedral for nearly a thousand years, until Seville Cathedral was completed in 1520.