Since I'm a stair-lover I must start with saying: . Now with that put aside, let's head over to the wording.
Stairs is a well known and very loved object/scene for many many architecture loving photographers. The shapes and lines that comes out of it is sometimes sensual & interesting.
This is no exception. As the caged center provides a very haunting yet beautiful prespective it also forces the mind into thinking what and why it's there. A photo not just wonderful in the aspects of photography but also a photo worth beeing called SEXY!
Composition is great, colors are sleak and perspective is stariness-good. Great job, a photo well taken.