Six more extraordinary engineering feats of the railways are brought to life in this unique science and history series. 

Since their meteoric rise in the 19th century, railways have been at the cutting edge of engineering and transport. Some of the most mind-blowing achievements have been accomplished by the exploits of railway workers and pioneers who through incredible design breakthroughs, embraced nature and the challenges of physics to create a truly remarkable global network.

From the planet’s deepest jungles to its sprawling deserts and mightiest mountains, railways have been instrumental in helping us conquer them all. Each themed episode showcases examples from around the world, along with the same irresistible mix of high-tech graphics, exclusive access and stunning on location footage that have made the ‘Impossible’ brand a global hit.