Pilgrimage to Nidaros Cathedral
The Nidaros routes are, similar to the Way of St. James, a network of several pilgrimage routes that all end at Nidaros Cathedral. The Norwegian pilgrimage route (Pilegrimsleden) from Oslo to Trondheim (Nidaros), also known as St. Olav's Way (Olavsvegen), was reopened in 1997. In German, the name is also spelled St. Olaf. The pilgrimage route is derived from King Olav II Haraldsson. The holy King Olav was buried in Nidaros in 1030 after he fell in a battle near Stiklestad while marching on the Swedish-Norwegian St. Olav'sleden. Nidaros Cathedral was built over his grave.
After miracles attributed to him, Trondheim became a Christian pilgrimage site for four centuries. The history of the saints and the associated pilgrimages were certainly also a bond in the Nordic monarchy. It is said that immediately after Olav's death and canonization a year later on August 3, 1031, a wooden chapel was built over his grave. Around 1070, the Norwegian King Olav Kyrre laid the foundation stone for today's cathedral. He had the chapel replaced by a stone church (1090).
Source: Wikipedia