Reader M. J. sent me the link to this video, showing a very old steam locomotive on the Devil's Nose route to Alausi in Equador.
I found it particularly interesting because the rail line uses the old technique of switchback construction. The line ascends in one direction across a slope, ending in a set of points, followed by a siding and a buffer. The line then continues up the slope in the other direction, again ending in points, a siding and a buffer, repeating the process as often as is necessary to climb the slope. The train goes up one arm, stops on the siding while the points are switched, then goes up the next arm, and so on. This avoids the necessity to incorporate turns on a slope that has no space (or is too steep) to accommodate them. It's no longer much used, because modern railway constructors prefer to use tunnels to get through such obstacles. There are very few places in the world where it can still be seen; the Devil's Nose is one of them.
There's also an amusing encounter with an even older form of transportation at about the 6 minute mark. Watch the video in full-screen mode for best results.
I understand this railway line was rebuilt after the video was taken in 2007, and has been modernized. In some ways, I'm sorry to hear that. I've covered many thousands of miles on African railways not unlike the one shown above, on less steep slopes, to be sure, but just as rattletrap. It's something fewer and fewer people will experience as the old steam engines are phased out, and diesels take their place. I'm glad I had the opportunity to enjoy it - and I did enjoy it. It was like riding a piece of history. I can still smell the steam and smoke in my nostrils, swirling into the passenger compartment in choking clouds through the open windows as the train entered a tunnel, and the feel of bits of cinder and ash settling on my face and in my hair. When you took a bath after getting to your destination, you left a tidemark of ash and grit around the edge of the tub. Your clothes reeked of smoke for days afterwards, no matter how carefully you washed them.