Many Ways to Visit Trondheim, Norway A Trondheim landmark is the Old Town Bridge over the Nidelva River. Many roads lead to Trondheim, Norway, but visitors don’t necessarily take the time to get to know this important town midway up the Norwegian Sea coast. Even though Trondheim is Norway’s third largest metro area (pop. 275,000) it may seem like an unlikely destination. It’s some 500 kilometers (310 miles) from Oslo and a very long day’s drive from Bergen, which would…