Commodities voyeurism (and also some ride-hitching for Bo), from Big Al
This Sahara Railway Is One of the Most Extreme in the World
Trains on the railway are up to 3 kilometres (1.9 mi) in length, making them among the longest and heaviest in the world. They consist of 3 or 4 diesel-electric EMD locomotives, 200 to 210 cars each carrying up to 84 tons of iron ore, and 2-3 service cars. The total traffic averages 16.6 million tons per year.
And a bit of Oz, with "driverless" thrown in: