General view of the sahn (court), showing the ablution fountain; 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 ...