The ablution fountain, detail; The mosque erected by Muhammad 'Ali (reigned 1805-1848) is the most prominent monument in Cairo. Its commanding location on the citadel enables its soaring minarets to be seen throughout the city, and the combination of dome and semi-domes is successful as silhouette. As early as 1820, Muhammad 'Ali broached the idea of building a new mosque on the site with Pascal-Xavier Coste, who would hardly have deemed a mosque in the Ottoman metropolitan style appropriate. Work started in late 1828 under Yusuf Bushnaq, a Greek from Istanbul, and continued for at least nine years after Muhammad 'Ali's death. Although such centrally planned mosques in Istanbul as that of Sultan Ahmed have been cited as models, the copyist ...