A few things can't be missed when you are in Cairo. The first is undoubtedly the Pyramids. The second is molokhia. Molokhia is a traditional Egyptian soup that used to be reserved for the kings. In Arabic, according to my mother, molokhia means 'kingly'.
I thought I'd change it up and provide a review of EgyptAir's flight from Athens to Cairo. I also flew EgyptAir from Cairo to Luxor and and Cairo to Sharm. The details of this review are applicable to those flights as well.