Trondheim is the city where Norway was born as a Christian kingdom. Founded by the Viking king Olav Tryggvason in the year 997 on the banks of the river Nidelva, it was the country's first capital under the name Nidaros and the great pilgrimage center of northern Europe thanks to the tomb of St Olav, the king who fell in battle and became the nation's patron saint. Over that tomb rose Nidaros Cathedral, the largest church in Scandinavia, the final destination of the St Olav Way and still today the symbolic heart of Norway, where the Crown Regalia are kept.
But Trondheim is not a museum city. It is also a young, vital place, home to NTNU, the country's largest technical university, with tens of thousands of students who give it energy, cafés, music and nightlife. And it is a city of quiet beauty: its neighborhoods of colorful wooden houses such as Bakklandet, the old Gamle Bybro bridge reflected in the river, the rows of wooden warehouses on stilts over the Nidelva and Kristiansten fortress watching from above make up one of the most charming townscapes in Norway.
This guide covers the essentials of Trondheim in a practical, friendly way: the cathedral and the Crown Regalia, the wooden neighborhoods and the river, the fortress, the curious bicycle lift (the only one in the world), the museums and even the enormous submarine bunker left by the German occupation. With concrete details on prices, hours and transport, and the usual warnings about how expensive Norway is, so you can enjoy it without surprises.
Trondheim was founded by the Viking king Olav Tryggvason in the year 997, as a trading post (Kaupangen) on the banks of the river Nidelva, and it soon took the name Nidaros. Its destiny was sealed in 1030, when King Olav II fell at the Battle of Stiklestad trying to win back his throne and impose Christianity; soon afterward miracles began to be attributed to him, he was canonized as St Olav and his tomb became the greatest pilgrimage center in northern Europe. Over it, between the eleventh and fourteenth centuries, Nidaros Cathedral was built, the largest church in Scandinavia and the seat of the archbishopric from 1152. Nidaros was the capital of Norway in the Middle Ages and the church where kings were crowned. The Protestant Reformation, which reached Norway in 1537, banned pilgrimages and ended the power of the archbishopric. The city, built in wood, suffered devastating fires; after the great fire of 1681 it was rebuilt with wide avenues on a grid according to the plan of the engineer Cicignon, who also raised Kristiansten fortress. In 1905, with Norway's independence, the cathedral once again became the setting for the coronation of kings. During the Second World War, Nazi Germany occupied the city and built the enormous Dora submarine bunkers. Today Trondheim is a prosperous university and technology city that keeps its medieval soul. The full story is on our history page.
Read the full history ↓Trøndelag and its capital, Trondheim, the old Nidaros founded around 997: cradle of the Christian monarchy, city of St Olav and of the largest medieval cathedral in the north, destination of the Sankt Olavsleden pilgrimages and the setting for the last Catholic resistance and for the German occupation.
Read the history of Central →No exact prices: a scale from $ (budget) to $$$$$ (luxury), with 2-3 options per category.
Origins, formation and what the sources say.
In the year 997, a Viking king named Olaf Tryggvason laid the foundations of what would become Norway's first capital. He chose a bend in the river Nidelva, where the water formed a meander offering a sheltered harbor and a natural line of defense, with access to the region's interior. There he founded a trading post he called Kaupangen ('the market'), which soon took the name Nidaros: the mouth of the Nid. The place was ideal for trade, transport and control of the territory, and it did not take long to grow.
Olaf Tryggvason is a figure poised between history and saga. A warrior, a seafarer and a fervent convert, he set out to Christianize Norway by fire and sword, and although his reign was brief — he died around the year 1000 in the naval battle of Svolder — he left behind the town that would become the country's spiritual heart. To this day, a column in Trondheim's central square, crowned by his statue, commemorates the founding king.
In those first centuries, Nidaros was a wooden settlement by the water, a port at the northern edge of Christian Europe. Nothing suggested that this modest Viking market would end up as the destination of pilgrims arriving from all over Europe. For that to happen, a saint was needed. And the saint was about to be born, on a battlefield.
On 29 July 1030, at the Battle of Stiklestad, some 100 kilometers north of Nidaros, King Olaf II Haraldsson fell. He had returned from exile to win back his throne and consolidate the Christianization of Norway, and he met his death at the hands of an army of farmers and nobles opposed to his power. In military terms, it was a defeat. In historical terms, it was the beginning of everything.
Soon after his death, stories of miracles associated with his body began to circulate: wounds that healed, wonders at his tomb. In 1031, barely a year after the battle, Olaf was proclaimed a saint, and his body moved to Nidaros. St Olav (Olav den Hellige) became the patron saint of Norway, the country's 'eternal king', and his burial place a spiritual magnet. Through the Middle Ages, pilgrims from Norway, Sweden, Denmark, the British Isles and all of northern Europe set out for his tomb: Nidaros became the greatest pilgrimage center in northern Europe, comparable within its sphere to what Santiago de Compostela was for the south.
Those pilgrimage routes have not been lost: today they make up the St Olav Way (Pilegrimsleden), a network of trails — nine recognized routes — that all end at the doors of Nidaros Cathedral. Recognized as a Cultural Route of the Council of Europe, the St Olav Way is enjoying a revival, and every summer hundreds of walkers repeat, on foot, the journey medieval pilgrims made toward the tomb of the saint king.
Over that tomb, stone by stone, between 1070 and 1300, Nidaros Cathedral was raised, the largest church in Scandinavia. In 1152 the archbishopric of Nidaros was created, putting the city at the head of the Norwegian church. Nidaros was at once the political capital of the kingdom and its religious capital: the place where kings were crowned and where the faith of a whole nation beat.
Nidaros's power as a religious capital ended abruptly with the Protestant Reformation. In 1537, the kingdom of Denmark-Norway adopted Lutheranism, the Catholic archbishopric was abolished, the last archbishop fled into exile and pilgrimages to St Olav's tomb were banned. The cathedral became a Lutheran church, the saint's shrine disappeared and the city lost the role that had made it great for five centuries. Nidaros, which had already been ceding political prominence to other cities, was left as a regional capital of the north.
On top of the religious crisis came a constant enemy: fire. Like almost every Norwegian city, Nidaros — which over time came to be called Trondheim — was built of wood, and it burned again and again through its history. The most devastating was the great fire of 1681, which began on 18 April near the river and razed much of the center. That catastrophe, however, opened the way to a reinvention. King Christian V commissioned the Luxembourg-born military engineer Johan Caspar von Cicignon to draw up a new plan for the city.
Cicignon redesigned Trondheim with wide, straight avenues laid out on a grid, conceived as firebreaks to stop the flames spreading so easily again. That Baroque plan, surprisingly modern, is what still defines the center of Trondheim, with its unusual spaciousness for a Norwegian city. Cicignon was also the author of Kristiansten fortress, raised on the hill to defend the city from attacks from the east; in 1718 it withstood a Swedish siege. From the same period comes the Gamle Bybro, the old wooden bridge with red portals that is today one of the city's symbols, positioned so that it lay under the protection of the fortress guns.
So out of fire and war came the Trondheim of wide streets and wooden houses we know today: a city rebuilt on its own ashes, again and again, without ever losing its wooden profile.
Despite losing its role as capital, Trondheim kept a symbolic function of the first order: Nidaros Cathedral remained the place where the kings of Norway were crowned. Coronations were held in the country between 1164 and 1906, mostly at Nidaros. When Norway regained full independence in 1905, after dissolving the union with Sweden, the new king Haakon VII was crowned in Trondheim cathedral in 1906, in a gesture loaded with history that tied the young monarchy to the kingdom's medieval roots. Later, the Constitution replaced the coronation with a 'royal blessing', which is still held at Nidaros: that is why the Norwegian Crown Regalia — crown, scepter, orb and sword — are kept and displayed precisely in the Archbishop's Palace, beside the cathedral.
In parallel, Trondheim became a great center of learning. The founding of the Norwegian Institute of Technology (NTH) at the beginning of the twentieth century defined the city's future for a century. From that root grew today's NTNU (Norwegian University of Science and Technology), the largest university in the country, with some 40,000 students: it is what gives Trondheim its young atmosphere, its cultural life and its technological calling, and what explains such charming little oddities as the Trampe, the only bicycle lift in the world, invented in 1993 by a local resident to help people up the Bakklandet hill.
The twentieth century left Trondheim a scar of concrete. During the Second World War, Nazi Germany occupied Norway from 1940, and Trondheim, thanks to its strategic position in the North Atlantic, became a key naval base for the Kriegsmarine. The occupiers built the gigantic Dora submarine bunkers there. Dora I, completed and handed over to the German navy on 20 June 1943, served as a base for the 13th U-boat flotilla: it had capacity for 16 submarines and concrete walls so massive that they could be sealed airtight and withstand Allied bombing.
When the war ended, that mass proved practically impossible to demolish, so the city did the sensible thing: it reused it. Today Dora I houses the municipal and state archives, along with businesses and various activities, and it has become a place of memory that recalls, without drama but starkly, the years of the occupation. German plans for Trondheim had been even more ambitious and sinister — they included turning it into a great naval base for the Reich with a new city for hundreds of thousands of German settlers — a project that the Nazi defeat fortunately left on paper.
With the war behind it, Trondheim grew into the prosperous university, technology and cultural city it is today. Its old wooden warehouses over the Nidelva were converted into homes and restaurants; the Bakklandet district, which came close to demolition, was saved and became the city's best-loved corner; the cathedral still receives pilgrims from the St Olav Way. Norway's third city and the capital of the central region, Trondheim keeps its medieval soul — that of the founding king, of the saint, of the cathedral — and combines it with the energy of tens of thousands of students. Few cities gather, in so little space, a thousand years of Norwegian history so visibly.