"Titan IV"
A break from the project today took me to the Wings Over The Rockies museum at the old Lowry Air Force Base, now mostly surrounded by upscale homes.
You're looking into the business end of a Titan IV rocket engine. Taken with the S95 at 35mm equiv. Processed in LR3.5 and Topaz B&W Efects. Sorry for the size. For some reason I couldn't get LR to export it to a smaller size. Strange as the others have been no problem.
Just edited this to reflect that it is a Titan IV, not Saturn IV engine. I was falling asleep at my keyboard when posted.