Do you like books? Or photography? Or geometry? If you do, you really have to visit the public library, Stadsbiblioteket. Not only it has thousands of books, but they are also in a spectacular building. Well, it's not a beauty from the outside - in my opinion - but it is really worth going there for the inside. The building is round and high and has a nice entrance to the big hall. Find the opening hours on the official website. So take the tunnelbana, leave at Odenplan and you cannot miss the orange building next to Observatorielunden. And don't forget to bring your camera!