Iceland's capital city, Reykjavik, is another wintertime paradise. Despite its country's cold-sounding name and its northern latitude, Reykjavik does not have as harsh a climate as some of the other cities on this list. Average daily highs stay above freezing for almost the entire year, although snow is common, and low temperatures during the long winter nights drop well below 32 degrees.
The highlight of the city is its geothermal pools. Some are in high-end spas, but others, both indoors and outdoors, are open year-round to the public. Since alcohol is heavily taxed, many locals forego the bar scene and spend their time socializing at the pools instead. Iceland is also an ideal place to see the northern lights. Bus tours leave nightly for viewing spots outside the city where the naturally occurring geomagnetic light storms can be seen as clearly as anywhere in the world.