Holmenkollen - Penthouse on a Ski Jump (Oslo/Norway)

The upper-most level of the Holmenkollen ski jump has been turned into a luxury penthouse. The cozy, yet expansive alpine retreat has floor to ceiling windows that give you one of the best views imaginable of Oslo - snow capped mountains and endless forest. Right above is the highest roof terrace in town, ideal for stargazing if you're not scared of heights.

Lærdal Tunnel (Sogn og Fjordane/ Norway)

Lærdal Tunnel is a 24.51-kilometre long road tunnel connecting connecting Oslo and Bergen. It is the longest road tunnel in the world succeeding the Swiss Gotthard Road Tunnel.
Its design takes into consideration the mental strain on drivers, so the tunnel is divided into four sections, separated by three large mountain caves at 6-kilometre intervals. While the main tunnel has white lights, the caves have blue lighting with yellow lights at the fringes to give an impression of sunrise. The caves are meant to break the routine, providing a refreshing view and allowing drivers to take a short rest. The caverns are also used as turn around points and for break areas to help lift claustrophobia during a 20-minute drive through the tunnel.

Stauran Art Café (Syltefjord/ Norway)

Stauran Café is a unique place at the very top of Norway, above the Arctic Circle. Trees can't really grow at this latitude so the buildings are handmade from Russian driftwood. You can even see shipworm's holes on some of the walls inside.
Apart from the café there's also little driftwood cabins for overnight stays, a camping area, barbequeue evenings, meditation and sauna. Crystal jewellery and intricate paintings on rock-slabs are available for purchase as souvenirs and personal guided tours with emphasis on geology, history and fishing are also offered.
They're open during the warmer season from May 15th - September 15th.

Igloo hotel (Alta/ Norway)