Here are some links to find answers about travel to Norway and Scandinavia:

Sons of Norway — International Headquarters
Norway’s Official Site
Royal Norwegian Embassy, Washington, D.C.
Royal Norwegian Consulate General in New York:
Norway’s travel requirements
Hurtigruten – Authentic Voyages to Pristine Lands
Viking River Cruises
Norwegian American Genealogical Center & Naseth Library
Vesterheim Museum – “A Norwegian American Treasure”
Norwegian American Foundation
Embassy of Denmark, Washington D.C.
Embassy of Finland, Washington, D.C.
Embassy of Sweden, Washington, D.C.