I have always loved antiquated ruins either from an Archeological Viewpoint or otherwise whether from National Geographic Magazine, Discovery Channel, or elsewhere.
You have a great shot here, but I think per the attached if you don't mind:
1. The perspective of the Columns are tilting just a bit to the right so I corrected them to the left ever so slightly.
2. Clarification was performed with minor Jpeg noise removal.
3. Utilized the 'Sunset Filter' in Corel Paint Shop Pro Photo X2 for that 'Sepia' feel but still retained the original color version underneath.
4. Finally, just a basic 'Presentation Border' to give that 'Window Look' out into the world, I hope you like it!