Ep. 5 - Reaching New Heights

Impossible Railways

Mountains are one of the greatest challenges a railway can face. Tough climbs, perilous ascents and extreme weather conditions have all posed seemingly impossible problems. From tunnelling through the mighty Swiss Alps, clearing the snowbound rails in California's Sierra Nevada, to a 19th-century engineering masterpiece that conquers a near-vertical cliff face in southern Australia, this episode investigates the solutions that have made these remarkable journeys possible.
Aired:
Jul 04, 2019
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