Copenhagen, the city of bicycles, has no traffic and no noise. It can be a bit gloomy in the winter but even then, a visit to Nyhavn and a beer can cheer you up.
The city and the country which treats its citizens with wonderful benefits, good healthcare and schools, seems to be keeping its people happy.
Almost everybody looks fit (because of all that biking), the majority of the people speak perfect English and they are polite, and everything seems to be where it is supposed to be.
Copenhagen is one of the finest cities in the world. A city that makes sense!
But do keep in mind that it is quite expensive.