Documentary series that reveals the secret history behind the world's most iconic railways.

EP2 — Dark Side of the Mountain: The Harz Mountain Railway isn't just the largest functioning steam network in Europe — it also charts the incredible story of Germany itself, from ancient folklore and witchcraft in the dark forests that inspired the Brothers Grimm, to the sordid work of the East German secret police, the Stasi, who occupied a secret mountain-top listening station.

EP3 — The Gold Rush Railway: The seeds of Donald Trump's family fortune were sown in the wilds of the Yukon by his grandfather, Frederick Trump. When the railway brought hundreds of thousands of hopeful amateur miners during the Gold Rush, Trump's hotels serviced their every need. Today, the White Pass and Yukon Railroad brings tourists keen to explore incredible scenery, passing through lawless ghost towns and landmarks with chillingly literal names like Dead Horse Gulch.