Copenhagen!
All the Danish people in the line for passport control merely held up their passports, closed, and were waived through.
The train to the center of town is clean and quiet, takes 15 minutes, and costs less than $5.
There are bicycles everywhere. They are all locked to themselves. Many roads have separately paved bike lanes as wide as a real lane in both directions, and traffic lights at big intersections have separate signals for cars going straight, cars making right turns, bicycles going straight, bicycles making right turns, and pedestrians.
Everyone is blond, much more so than in Norway.
There is a bigger difference between Norwegian and Norwegian than Norwegian and Danish.
We rented bicycles one day and went riding around the city.
We gawked at the big ugly new opera house.
We spent a long morning wandering through Christiania. Pot used to be sold there openly, heaped on tables. Now the main square seemed to be occupied mostly by confused tourists and grizzled hippies getting drunk at outdoor bars. I saw more police there than in the rest of Copenhagen for the entirety of my stay. We ate a vegan lunch in the sun in a little cafe.
The residential areas are actually quite lovely, little houses overrun by lush greenery. A note in the window of one house read (in Danish) "Thieves! If you must steal, please do so from someone who can afford insurance." and (in English) "Please don't break my door. I'm poor enough already."