When we think of Norway, Vikings often spring to mind. The Vikings were Norway’s Nordic ancestors, seafaring warriors who raided other countries until 1066, when King Harold defeated Harald Hardrada.

Every year on May 17, the streets of Tromsø fill with color, music, and tradition. From boat parades to ferry passengers taking center stage, this is how Tromsø marks Norwegian Constitution Day.

As its name suggests, the new “Vibrant Traditions” exhibit at the Norway House shows how time-honored Scandinavian weaving practices are still full of life. On display in the cultural center’s bright ...