Like any large museum, it would be impossible to see it all. However, this museum has a LOT to…read moreoffer. It's is mostly a historical museum and covers the time from the earliest relics of the Danes to modern times.
The physical museum used to be a castle, and that explains why there are so many rooms, one after another. I recommend looking at the overall map and pick a floor and a place to start, based on what interests you the most. Then, allow yourself to get lost in terms of going from one room to another. There are visual and historical treasures throughout the museum, so it would be nearly impossible to NOT find things of interest.
I loved seeing the old crowns, jewelry, and clothing, as well as Viking horns for drinking, old weapons, and the creative way things are presented.
I was impressed by this museum because they have used modern museum techniques to display objects and explanations. For example, in one room, they had talking paintings to convey information, or a knight on a horse, which makes horse noises out of the blue.
They also have some very creative temporary exhibits, which you should check out. When I was there, there were very interactive displays that were all about money and how wealth is distributed around the world. It was thought provoking, as well as fun.
When you need a rest, there is also a cafeteria overlooking the inside of the museum.
Face it, you are not going to see it all. There is too much and you won't have the time or stamina to "do it all." But that's OK. It's definitely worth it to buy a ticket ($22 USD) to spend two hours or so, as we did.