Norwegian Armed Forces Aircraft Collection is home to a fascinating collection of all things to do with air transportation. The younger members of the family will be happily entertained, and the grown-ups will learn plenty too!
To visit this exhibit of aviation history, head to Ullensaker. There are lots of other worthwhile attractions in this area, like Jessheim Storsenter, Nannestad Skisenter / Åslia, and SAS Museum.