I have seen this tunnel loads in photos around 500px and Flickr and other photo websites but never been sure where it is, I always though it was at Waterloo Underground station but infact this is at Bank Underground station. It is a really awesome tunnel in that the ceiling is really low and wide arches. I came here when it was quite quiet and the photo that I have uploaded is exactly what I wanted to achieve. I was glad the gentleman in the photo had such a contrasting suit on.
To take this photo I adjusted the white balance when taking the photo as it was odd fluorescent lights that produce a orange/yellow hue and I also knocked up the exposure bias a bit to help with make the difference in contrast between the white wall and suit of the man. The post processing included importing into PTLens to correct barrel distortion and then edited in Lightroom 3, thats it really. I hope you all like it as its one of my personal favourites.