The mosques of Medina, Mecca, Jerusalem, Ramleh, Damascus, Kufa, Basra, Shiraz, Nishapur, and Ardebil; the Mosque of Jafar at Baghdad, the Great Mosque of Samarra, the Zakariyah Mosque of Aleppo, the Mosque of Ibn Tulun and the el-Azhar in old Cairo, the Great Mosque of Tunis, the Sidi Oqba Mosque of Qairuan, the Blue Mosque of Cordova—we can do no less, and no more, than name them, for of the hundreds such that were built in this period only a dozen remain distinguishable; indiscriminate time has leveled the rest through earthquake, negligence, or war.