The Flat Railway Hidden Under the Alps

Trains hate hills: steel wheels roll easily but grip weakly. So in 1882 the Gotthard railway spiraled inside its mountains to climb to 1,151 m. In 2016 Switzerland opened a different answer: a 57 km railway that stays at the height of the valleys, under up to 2,300 m of rock. We cut the real Alps open to show both lines, how the deep one was built, and the next one being dug under the Brenner Pass. No narration: every fact is on screen and sourced below. Chapters 0:00 Two railways, one mountain 1:14 Why trains hate hills 2:30 The 1882 workaround 4:54 The flat railway 6:04 Building it 7:25 Inside the system 8:31 The next one: Brenner 9:32 Across the Alps