Thanks again everyone! These are useful.
Re: types of things of interest - cities are fine, countryside too. Metro is fine. We've taken trains/metro and wandered around Florence, Venice, Prague, Budapest, Tokyo, and a bunch of US cities. No concerns about using public transport.
I think we're going to try to set up a self guided bike tour for a week or so, split the rest with Paris and surroundings.
I don't drink wine, Mrs C does - but not enough to build an itinerary around it.
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