I'm a collector of itineraries; the possibilities are endless, and this one caught my eye. Easily expanded but created for those whose consider the rail journeys as highlights of the trip.
From The New York Times:
6 European Countries, 9 Days, 0 Planes
From north to south, Sweden to Portugal, trains are a relaxing destination all their own.
http://www.nytimes.com/2016/05/29/travel/europe-train.html?mwrsm=Email