Mighty Trains takes you to Switzerland – home of the Bernina Express. It's one of the most beautiful train journeys on earth – especially in the winter. Traveling along the highest railway line in Europe, this passenger train navigates 55 tunnels, nearly 200 viaducts and bridges. The engineering feats along the line are so spectacular it's the first of three railway lines on the planet to make the UNESCO World Heritage list.

Mighty Trains rolls through Norway along the Bergen Line – described as one of the most amazing railway journeys in Europe. The Bergensbanen stretches nearly 500km from Oslo to Bergen, passing through an astonishing 182 tunnels, and some of the most scenic vistas in the world. Along the way, we take a side trip on the Flam Railway, which boasts one of the steepest railway climbs on Earth. Once we arrive in Bergen, we travel north for a ride on the famous Nordland Line, which stretches from Trondheim to Bodø - an Arctic railway that is an important part of Norway's infrastructure, transporting passengers and freight across the North.