During the Viking era, Trondheim was Norway's capital. Although it's the third biggest city in Norway, it is very easy to explore on foot and we even managed to find some free parking for the day! One of the most iconic images of Trondheim (above) is taken from the Old Town Bridge (below).

Old storehouses on stilts line the Nidelva river. Even on a dreary day they look cheery.

Above is the view we had from Troll Restaurant. If you're looking for a reason to visit Trondheim, let this restaurant be it!

Trondheim is home to the world's northernmost medieval cathedral, Nidaros Cathedral.

The city is rich in history and the colourful buildings don't only line the river.

As with many of the European cities we have visited on this trip, you can't ignore the impact of World War II. Norway was occupied in 1940 and for the following five years German submarines operated out of Trondheim. 'Dora 1' became the largest German naval base in Northern Europe and you can still see where the submarines would have entered the bunker.

Made of concrete, the ceiling is 3.5m thick and the walls 3m thick. Slave labour was relied on to build the bunker. After the war, initial plans to destroy the bunker were cancelled due to the impact blowing it up would have had on the surrounding area. It now houses various businesses and a bowling alley!