A train is a form of rail transport consisting of a series of connected vehicles that usually runs along a rail track to transport cargo or passengers. Motive power is provided by a separate locomotive or individual motors in self-propelled multiple units. Although historically steam propulsion dominated, the most common modern forms are diesel and electric locomotives, the latter supplied by overhead wires or additional rails. Other energy sources include horses, engine or water-driven rope or wire winch, gravity, pneumatics, batteries, and gas turbines. Train tracks usually consist of two running rails, sometimes supplemented by additional rails such as electric conducting rails and rack rails, with a limited number of monorails and maglev guideways in the mix" This is a clip from the NRK TV-program "Bergensbanen Minutt for Minutt", that shows the train-ride through beautiful Norwegian landscape. Finse is the highest station on the Norwegian railway system at 1222 meters above sea level.