I know airports, and Kastrup, the main international airport serving Copenhagen, is one of the best. Why? If you travel as much as I do, you do all your shopping in airports. Copenhagen has some of the best shops and food and it's all laid out in those clean Scandinavian lines.
Denmark is a country with some attitude. Eight years ago I went to Copenhagen, and thinking that it was in the Eurozone, I made the mistake at the duty-free checkout of expecting them to accept my euros. You've never seen such a look of horror. But first and foremost, Denmark is a nation of some considerable entrepreneurial talent.