Africa got some wild train rides, but this one might be the wildest. One of the longest and heaviest in the world, the Iron Ore Train reach 3 km in length and max out at 22,000 tonnes. The train's raison d’être is the iron mines of Zouérat from where the it brings ore, not passengers, to the coast. It is also the most direct route between Nouadhibou and medieval cities and oases of the Adrar region. The one passenger carriage is cheap, but you will have to fight vigorously with locals to get a seat. You can also buy one of the dirty cheap, with an emphasis on dirty, beds. Adventurous souls, instead, opt for riding in the iron ore waggons. Travelling east, the carts are empty; going west you sit on top of the metal dust. Come prepared: The empty carts are hard to spend the twelve-hour journey in and the desert nights are cold. And no matter how you ride, the journey is insanely dusty. Do instead take comfort in the endless glasses of tea and the lessons in Hassaniya Arabic your fellow passengers share with you, and – riding the waggons – the breathtaking desert night sky.