The Holmenkollen Ski Jump, perched on a hilltop overlooking Oslo, offers a panoramic view of the city and doubles as a concert venue. During Oslo's annual ski festival, held in March, it draws the world's best ski jumpers. Even if you're not a dare-devil ski jumper, the complex is well worth a visit thanks to its ski museum and a couple of other attractions.
The Ski Museum leads you through the 4000-year history of Nordic and downhill skiing in Norway. There are exhibits featuring the Antarctic expeditions of Amundsen and Scott, as well as Fridtjof Nansen's slog across the Greenland icecap (you'll see the boat he constructed from his sled and canvas tent to row the final 100km to Nuuk).
Admission also includes a visit to the ski-jump tower . Part of the route to the top of the tower is served by a lift, but you're on your own for the final 114 steep steps. Outside, the ski-jump simulator is good for a laugh, but don't try it if you have a weak stomach. To get to the museum, take T-bane line 1 to Holmenkollen and follow the signs uphill.