6. On the island of Bygdøy there are four maritime museums (all of them are worth your time). Clockwise from top-left: the Fram Museum, which tells of the perilous polar and arctic exhibitions (the film is a must); the Kon-Tiki Museum, about Thor Heyerdahl (who introduced the concept of maritime experimental archaeology) and how he sailed in balsa-wood rafts and reed boats; the Viking Ship Museum, which has well-preserved Viking ships and artefacts; as well as the Norwegian Maritime Museum (check out the 2200-year-old dugout boat, and enjoy the film of beautiful shots and clips of Norwegian coasts and cities).