Canary Wharf tube station, London.

This one's from my recent trip to London. I love the shapes and light in London's stations - in this photo the light is pouring down into the station from the exit, silhouetting the commuters. Usually I don't like to have people in my photos, but here it works to give scale and motion to the scene.

Camera/lens settings: ISO 100, f/4.5, 1/50s, 24mm, hand held.