Video: Crossing the Sahara Desert by Rail

Trains have been a staple of travel and commerce for more than 150 years. So much so, that today we almost take them for granted. But one railway through Mauritania remains a workhorse, carrying iron ore through one of the most remote sections of the planet. This video tells the story of this unexpected train system, taking us to the wilds of the Sahara Desert where the landscapes are stark, beautiful, and harsh.