I'm going to Switzerland (Geneva), also to Paris, and Amsterdam, there's some place where can I find a "Melty Cheese Wheel"?
Looks like that the real name for this dish is "Raclette"
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It sounds like you're looking for raclette:
The dish originates from the Swiss canton of Valais, not far from Geneva, which means the dish is quite common there. For the locals it's a winter dish, but there are quite a few (somewhat touristy) restaurants that serve it all year round, like this:
Plenty of raclette/fondue places in Paris as well, just Google for "raclette Paris".