A look alongside the viaduct that carries the railway line from Oxford Road to Piccadilly in Manchester.
Arch 42 near Princess Street is roughly halfway between the two stations.
This is one of a series of photographs I took on a walk around the route of the viaduct making some interesting discoveries along the way. An illustrated account of that walk can be found on the Geograph blog.
This is a contribution to The Weekend in Black and White and Sunday Bridges at San Francisco Bay Daily Photo.