Originally Posted by
Timfid
If it were me I'd think of either Paris -- plenty to do inside, and it usually doesn't get horribly cold in the winter -- or Northern Italy, since you could see Venice, Florence, etc. without the mobs. I'm not sure if those are far enough away from you though.
While Paris might be bearable in terms of the cold, I would be very hesitant to recommend a visit to N. Italy in the winter. It can be incredibly foggy.