Accommodation:

Kiruna: Spis hotel and hostel (7/10): The location was perfect for a home base and offered the best hotel breakfast I ever had! They also have a sauna for the cold winters! The rooms could be nicer, but overall a great time!

Stockholm: City Backpackers Hostel Stockholm (7/10): The hostel is very central to everything in the city and has an amazing lounge and kitchen for meeting new people! Also very clean!

Must See Places: 

Kiruna: I highly recommend timing your visit to see the Northern Lights as well as the ice hotel. They town also offers snowboarding and skiing, but pack heavy, it gets cold that far north!

Stockholm: Gamla stan is an island that houses a Nobel Prize museum, the Royal Palace and a number of interesting shops! Even if you are not a fan of books, I highly recommend checking out the Stockholm Public Library!