 The structure holds unique importance in that it is the only conserved testimony of a large building of Spanish Islamic architecture of the era of the Taifas (independent kingdoms).The Aljaferia, along with the Mosque–Cathedral of Córdoba and the Alhambra are three of the best examples of Hispano-Muslim architecture.In 2001, the original restored structures of the Aljafería were included in the Mudéjar Architecture of Aragon, a World Heritage Site.