Taillevent, Le Bernardin, Fat Duck, French Laundry, Inn at Little Washington, etc will all provide memorable and wonderful meals.

But I have to agree with number_6 and luxury -- if you build them up as **meal of a lifetime** you are setting yourself up to be disappointed!

It seems to me that you need to hedge your bets (spread them out across a range of experiences) and make the entire journay part of the trip to remember...

So you might
* Do the Maldives and the underwater restaurant as noted above
* Do several days in Paris and eat at ALL of the 3*s there
* Do a RTW as noted above as well, eating at a top restaurant in Europe and in Asia

One meal just won't cut it if you've built it up so much. Either add truly unique setting to the equation or make it a series of meals.