So, this won't be our Honeymoon, but my husband and I are thinking of doing 3 weeks in Europe over our Christmas holiday. We want to visit Munich first, then Geneva, Barcelona and Valencia, and Paris (no particular order for the anything other than Germany first). We're leaning towards renting a car. I know it's expensive to pick it up in one country and leave it in another, but aside from that, does anyone have experience with this? Is it particularly scenic, or boring, or is there unbearable traffic? Just looking for any advice that's out there