more on the Brennerbahn

the Brenner pass station, 1,371 metres (4,500 ft) above sea level

the station and bridge at Franzenfeste/Fortezza

the upper and lower levels at the Plersch valley where a tunnel has now been built.

Exactly which station constitutes the southernmost point of the Brennerbahn or Brenner railway depends on which source you consult, however, there is general agreement that the northern-most point is Innsbruck in Austria and that the further-most south is Verona in Italy, a distance of 275 km.

There is no dispute that the scenery it passes through is very impressive.  The line's name comes from the Brenner station which after WW1 has marked the border between Austria and Italy.  As Italy had backed the victors in WW1, it was given the South Tirol as a reward, even though the region still today looks and feels like part of Austria and German is still an official language there along with Italian.

Electrification took place in the 1950s: Innsbruck to Brenner/Brennero, about 35 km, is electrifed in the German/Austrian/Swiss 15 kV AC while south of Brenner/Brennero is the Italian 3 kV DC.

The Innsbruck to Brenner section used to be characterised by impressive loops and curves, but in the 1990s three long tunnels eliminated most of them.