I went to Egypt aboard the USS JFK back in the Seventies, and took a trip to the pyramids. You could still climb them back then, and I remember climbing up a few levels of blocks and thinking “This is crazy!” They were kind of crumbly looking, and I recall thinking if you slipped, there was no stopping you, and it was going to be a long way down even from where I was, so I didn’t go up any further.
I heard a sailor on a subsequent trip there did get badly injured or killed when he fell, and they prohibited it for sailors.
Nowadays, I don’t think anyone is allowed to climb.
I got off the Kennedy just prior to that cruise. We never pulled into Egypt while I was onboard.
I haven’t been to Egypt, but I did climb the Pyramid of the Moon near Mexico City and the pyramid at Chichen Itza in the Yucatan. That one at Chichen Itza had very narrow steps, less width than your shoe. Going up was not too bad, but my acrophobia kicked in when I got to the top and I went down on my butt, scooting from step to step and hanging on to a chain that served as a kind of railing. I ruined a good pair of shorts with that butt scoot, but it saved my sanity. The view from the top of the pyramid was terrific but I would not do it again.