Trondheim: Norway’s Historic Third City

Trondheim is Norway’s third-largest city and, arguably, its most historically important. Founded more than a thousand years ago as Nidaros, it was the country’s first capital, the site of the great cathedral where Norwegian kings were once crowned, and a magnet for medieval pilgrims. Today it pairs that deep history with a young, forward-looking energy: this is a university town, a technology hub, and a genuinely walkable riverside city that many visitors leave wishing they’d given more time.

Whether you are planning a short visit, adding a stop to a longer Norway trip, or weighing up a move north, this guide covers Trondheim’s history, its landmark cathedral, its student and tech scene, and the attractions and practicalities that matter most.

A Viking capital: the story of Nidaros

Trondheim began life as Nidaros, a name still used today for the cathedral and the diocese. It was established in 997 by the Viking king Olav Tryggvason, who set up a trading post and royal seat at the sheltered mouth of the Nidelva. For long stretches of the early medieval period, Nidaros functioned as Norway’s capital and its spiritual heart, a place where kings were acclaimed and, later, crowned.

The city’s religious significance grew enormously after the death of King Olav Haraldsson at the Battle of Stiklestad in 1030. Canonised as St. Olav, he became Norway’s patron saint, and Nidaros grew into one of the great pilgrimage destinations of northern Europe. That legacy is still visible everywhere, from the cathedral itself to the modern pilgrim trails that lead into the city.

If you enjoy tracing Norway’s Viking and royal roots, Trondheim pairs naturally with the historic core of the capital — our Oslo travel guide is a good companion read.

Nidaros Cathedral and the St. Olav pilgrimage

Nidaros Cathedral (Nidarosdomen) is the reason many people first come to Trondheim, and it does not disappoint. Built over the burial site of St. Olav, it is the northernmost medieval cathedral in the world and one of Norway’s most important buildings. Its richly carved west front, soaring nave and stained glass reward a slow, unhurried visit, and the surrounding grounds and the neighbouring Archbishop’s Palace round out the experience.

The cathedral remains the endpoint of the St. Olav Ways, a network of pilgrim routes that draw walkers from across Norway and beyond. You do not need to be religious to appreciate the atmosphere: arriving on foot after days on the trail, or simply stepping inside off a busy street, both leave a strong impression. For a broader dose of Norwegian landscape on your way in or out, our guide to the best hiking spots in Norway is worth a look.

The student and tech city: NTNU

For all its medieval weight, Trondheim feels young. That is largely down to NTNU, the Norwegian University of Science and Technology, whose main campus sits in the heart of the city. With a large student body drawn from across Norway and internationally, NTNU shapes the rhythm of the place, from packed cafés and cheap eats to a lively bar and music scene during term time.

The university’s strength in engineering and the sciences has also helped make Trondheim a genuine technology and research hub, with research institutes, startups and established companies clustered around it. If Norway’s working world is what draws you north, our overview of how to work in Norway covers the essentials for newcomers.

Top things to do in Trondheim

Trondheim’s highlights are refreshingly close together. You can cover most of them on foot, weaving between the cathedral, the river and the old wooden districts. Here are the attractions worth prioritising.

Start at Nidaros Cathedral, then wander across the Gamle Bybro, known locally as the “Gate of Happiness” (Lykkens portal), into Bakklandet, the district of old wooden houses that is now full of cafés and small shops. Climb up to Kristiansten Fortress for the best views over the rooftops and the fjord. In summer, catch a boat out to Munkholmen, the little island that has served as everything from monastery to prison to fort. Music lovers should make time for Rockheim, the national museum of popular music, and everyone should walk the line of colourful Bryggen wharves reflected in the Nidelva.

Food and café culture

Trondheim eats well. The Trøndelag region is one of Norway’s strongest food areas, with a farm-to-table scene built on local dairy, seafood, game and baked goods. In the city that translates into everything from student-friendly bakeries and coffee bars in Bakklandet to a handful of ambitious restaurants showcasing regional produce.

Café culture is central to daily life here, helped along by the student population and the Norwegian love of a goodkoselig (cosy) hangout. Expect strong coffee, cinnamon buns and long, unhurried sits. If you want to drink like a local with your meal, our guide to Norwegian aquavit explains the spirit that traditionally accompanies richer Norwegian dishes.

When to visit and how to get there

The most comfortable time to visit Trondheim is late spring through early autumn, roughly May to September, when days are long, the weather is mildest and the riverside terraces are busy. Late July brings the St. Olav festivities around the cathedral. Winter is darker and colder, but it has its own cosy appeal, and on clear nights this far north you may even catch the aurora — see our guide on how to see the northern lights in Norway.

Getting there is straightforward. Trondheim Airport (Værnes) connects the city with Oslo and various Norwegian and European destinations. The scenic train from Oslo on the Dovre Line is a rewarding overland option, long-distance buses serve the city, and Trondheim is a regular stop for the coastal Hurtigruten ships. Once you arrive, the compact centre is best explored on foot or by bike.

Comparing Norwegian cities before you book? Trondheim sits neatly alongside the capital in feel and scale — our Oslo neighbourhoods guide is a useful point of contrast, and if you have ever wandered the capital’s oldest quarter, our Gamle Oslo guide covers similar historic ground.

Keep exploring Norway

Trondheim is a brilliant introduction to Norway’s history and everyday culture, whether you are visiting or planning a move. To go deeper, browse our other guides:

• The Oslo travel guide
• Oslo neighbourhoods guide
• Best hiking spots in Norway
• How to see the northern lights in Norway
• How to work in Norway