I loved Copenhagen when I was there - Just grab a bike and ride around, I've never seen so many bikes in one place. Check out Christiania, a 'free city' in the middle of Copenhagen; even if you don't smoke weed the place is incredible, just so different and unlike anywhere I've ever been. I really enjoyed all the restaurants I ate in, as well as the little coffee shops around but unfortunately I wouldn't be able to remember any of the names!