Copenhagen cleaned up the bay it sits on and turned the old piers into mixed use neighborhoods. Here's another one in the north of the city, Århusgadekvarteret.
One thing about Copenhagen is that there's tons of dense housing but you *never* find it fronting a busy road with cars racing past, which describes about 90% of the apartments in the US. They manage to make it feel tucked away, private, cozy. (These are all from Sluseholmen, my dream neighborhood.)