During the winter, you can visit the gift shop and talk to staff who are eager to answer any questions you may have.
The museum is really a gem in the middle of the tiny town of Minot. There isn’t much else to do and the park is about a $7 taxi ride from the airport. I wouldn’t bother getting a rental car, the distances between everything are cheap enough to get by with walking or cab fare. You can check out some of the pictures I took in the freezing cold, including the one on the left of a 30ft tall Dala horse.