Sweden is part of Europe and one of the cold countrys.
Capital of Sweden is Stockholm – a very interesting city.
!!! Take a sleeping bag with you because in every hostel you have to pay extra for the linen and towels !!! Just an Idea to save you some money.
I recommend to go up north – In winter time you have the chance to see the northern lights.
Language: Swedish and English
Money: Kronen – at the most places you only can pay with card
If you have to get a sim card I recommend Comviq