He does love parallel lines and flat roofs. (the blotch on the left of the roof bottom are also classic Stone -- evidence of a leaky roof)
p.s. I was questioned by security guards about why I was taking this picture.
* slight touch-up
* turned all but the flag into greyscale
* adjusted levels
* USM
* adjusted size for submission
* added photoshop clouds (which was a no no....I had no idea. Sorry!!)
Disqualification Details
Cloning, dodging, burning, etc. to improve your photo or remove imperfections or minor distracting elements, etc. is acceptable. However, using any editing tools to duplicate, create, or move major elements of your photograph is not permitted.
Interesting sky... I could be wrong but it looks to be generated from the Render->Cloud filter for added image interest. I used that filter in this recent picture of Mt St. Helens: