Stanislas T
Google
There are so many things to see and learn inside the castle, it is probably one of the main tourist site you HAVE to visit while in Sweden, at least if you are fond of history and architecture. You could spend the whole day inside and never feel tired.
The castle' state of conservation is truly remarkable and the depiction of life in the middle age/renaissance is astounding. It is obvious the staff worked overtime to provide such a level of precision. Don't forget to look up for the ceilings, they are beautiful.
I visited the castle during the Häxor exhibit and it was both immersive and moving, even for a foreigner, I can't even comprehend the amount of work that was needed to create such a masterpiece, even the poster is a work of art. I don't know who directed it but they are very talented.
When you're done visiting, climb up the walls and enjoy the view. All in all, I came back with 400 pictures of the castle, that speaks for itself. It is hands down one of the best places in Sweden.