2 Tunnels to explore in Norway
The country has the fourth-highest per capita income in the world. It has the world's largest sovereign wealth fund, with a value of US$1 trillion. Norway has had the highest Human Development Index ranking in the world since 2009, a position also held previously between 2001 and 2006.
Drammen Spiral is a 1,650 meters long helix-shaped tunnel located near Drammen, Norway. The tunnel emerges at a summit 180 meters above the town on Skansen Ridge. From the summit, tourists can walk in the Drammensmarka, the forest area surrounding Drammen.