I'm a brazilian who is studying for an year in Europe (UK).

I will soon have my Christmas vacation, so I will have 3 weeks free on which I wish to travel throughout the continent.

I know that winter has some bad points, such as the climate, but it also has some good points, such as cheaper and less crowded places.

But I still haven't planned anything, so I would like your opinion on nice places to go on Winter, specially for Christmas and New Year.

I also intend to travel next summer, so if there is any special event (like the Moscow Winter Festival, for example) on this time of the year, I would love some recommendations.

My initial plan was Christmas in Prague and New Year in Berlin. A couple days at Northern Norway/Sweden to try to see the aurora borealis, and some days in Germany to visit Chirtmas markets.

Any help, suggestion and information is very welcome :)