Never been, but our son has it on his bucket list. Will be following to see what you come up with.
To contribute, maybe check out one of the high-end travel planners like Abercrombie & Kent and see what sort of special experiences they have, then plan on your own.
For instance, we are headed to UK this summer and my bucket list tour is the behind the glass Churchill war rooms tour with the museum director. If I were in in Egypt, you bet your arse I would pay for whatever VIP / behind the scenes tour they offer.
I find those to be a great way to not just visit museum, but to truly learn.
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