-Double-arched columns, brilliantly articulated in the alternating band of color -Light and airy interior -Horseshoe-shaped arches derived from the Visigoths of Spain -Hypostyle mosque: no central focus, no congregational worship
--The site was originally a Roman temple dedicated to Janus, then a Visigothic church, and then the mosque was built -Columns are spolia from ancient Roman structures -After a Christian reconquest, the center of the mosque was used for a church
-Muslim mosque
Context
--Complex dome with elaborate squinches was built over the mihrab; it was inspired by the Byzantine architecture -Kufic calligraphy on walls and vaults