File:Rails Through Earls Court - Geograph.org.uk - 1691033.jpg
The tracks to the right of centre, in a brick-lined cutting, are the District Line route from Kensington Olympia. The junction connects them to the main east-west District Line route between Earls Court and West Kensington stations.
The building on the right of the photo is the permanent shed of London Underground's Lillie Bridge works. It was originally a trainshed for the Piccadilly Line.
(required by the license)