This is a whimsy on my part. While I was out walking this morning I had an idea come to me about London, specifically as a public transport user covering London on a station-by-station basis (for those not terribly familiar with me, I grew up in London), and the one the came into my mind, partly because one of fellow bloggers is visiting London and will almost certainly be making use of this station was South Kensington. If it works well I will try to come up with others.
South Kensington is served by the District, Circle and Piccadilly lines, the first two since 1868 and the third since 1906. As a destination it means one thing to me: museums. I cannot really say much about the Victoria and Albert, but the others, namely The Natural History Museum and the Science Museum are both old favourites of mine (there used to be a Geological Museum as well, but that has long since been amalgamated with the Natural History). Either would merit a visit, or if you are up for really giving the brain some exercise, you could do one in the morning, have lunch (a picnic in Hyde Park if the weather permits) and then do the second in the afternoon.
There is an underground passageway from the main station concourse to the museums, with clearly marked exits for each museum, or you can do the walk at surface level, passing some decorative wrought ironwork as you leave the station.
To complete the post I have two pictures of recent London Underground maps (actually the same map, but the second picture zeroes in on the central area)…