Everyone should take one (and only one) trip to Egypt, to see the Pyramids, Sphinx, and Cairo museum.
We were in and out on the same day and imo thats the way to do it.
Mrs TB wants to do Cairo, as she has a fascination with all things (ancient) Egyptian. We did one of those Nile cruises from Luxor to Aswan and back, so all the temples, Valley of the Kings, Valley of the Queens etc, then each day watched the sun go down from the top deck of the boat, which conveniently had a bar.....
Oh, and a balloon trip over the wets bank of the Nile (so over Valley of Kings/Queens and Hatshepsut's mortuary temple) as the sun rose.
Downside of such a trip is I accidentally brushed my teeth in tap water on the boat one morning, which caused the "taps to open" for a few days