The supremely elegant Masjed Jamal Abdel Nasser was originally the austere, neo-Romanesque Catholic cathedral. The conversion from church to mosque took place on 29 November 1970 in the days after the revolution, with the architectural work being completed in 2003.
Much of the former structure has been retained, but the use of marble and sandstone is exquisite. Non-Muslims aren't allowed inside, but the exterior is its most impressive element, especially if viewed from the teahouse surrounded by Italianate marble across the square.