Well, there's Egypt's successor state, the megacity of Luxor in
Judge Dredd, where the city is encased in a glass pyramid. The Luxor Judges are highly draconian: lawbreakers who aren't simply killed are imprisoned in a maze underneath the Sphinx, then executed after their sentence is over. The Judges pride themselves that this approach makes Luxor one of the safest megacities in the world. The city and its Judges borrow the iconography and religious practices of Ancient Egypt (though most people worship the single god "Yad"). Senior Judges and the wealthy can be mummified. So in this case, all you needed for a restored Pharanoic-ish Egypt was a devastating global thermonuclear war, in addition to the rest of the craziness in Dredd.