I am thinking about a Germany trip at some point, but I am thinking to do it over a weekend or something, so that would be 2-3 days. I saw that Cologne and Dusseldorf are next to each other, and I wanted to get a first taste of Germany, do you think that one full day in each of the cities are enough to cover the essentials and get a good vibe of the place and do a decent amount of exploration? Or should I dedicate two full days to one of the two? Not planning to do any museums, maybe a cathedral or two. #travel