Dec 12: The Circle and District Line
Continuing in my train series, here's a short video of a Circle or District line train in London entering one of the "non-underground" stations. I saw non-underground because it is not actually at street level but is 'open to the sky'. The Circle line has a charm of its own - not least because stations like Baker Street and King's Cross (which appear all the time in Sherlock Holmes' stories) are on that line and, of course, the trains run in a circle!