Impossible Railways

Every day cities around the world rely on the railway to keep them moving. Whether it's commuters travelling to work, tourists seeing the sights or goods going to market, trains ta...

From the planet's deepest jungles to its sprawling deserts and mightiest mountains, railways have been instrumental in helping us conquer them all. This episode explores the wilder...

Railways encounter a multitude of challenges, but among the most demanding of them all comes when faced with crossing the valleys, waterways and canyons that often stand in the way...

Mountains are one the greatest challenges a railway can face. Tough climbs, perilous ascents and extreme weather conditions, have all posed seemingly impossible problems. Daring ra...

Since the dawn of the 19th century, rail networks have overcome almost all nature can throw at them. But there's one environment that's their nemesis: water. Some of the world's gr...

For over 150 years, railways have pushed engineering to its limits, in order to open up the world. Trains can now travel further, and climb higher, than ever before. But for train...