There was some talk about Denmark earlier in this thread, partly based on a blog post by some kid. However, same kid did not realise that socialism, as it is practised in Denmark, is also practised in a lot of other countries in Europe. When it comes to socialism, Denmark, the UK, and Germany are not far apart. And by most accounts, Sweden is more socialist than those three.

There is a widespread assumption in Denmark (and probably in many other places as well), that the US is an extremely capitalist country. However, clearly this view is inaccurate, since socialism thrives in the US; any country with a central bank that actively dictates interest rates, cannot be capitalist - if capitalism is seen as the "free market economy". And I believe zoning laws are in heavy use in the USA - these are also not compatible with a free economy.

As far as I know, there is not a single "free market economy" on this planet as this time; socialism in one form or another exists in each and every country.