Flickr user Goldmember‘s photo is perfect graphic design fodder — the rich colors of the doorway and rusty gate, the spiral pattern over the linear doorway, and finally, interesting lettering. In fact, the “letters” of the mail slot remind us of a poem . Enjoy, friends. EXIF data here.

The Flickr pool for DCist Exposed is growing daily — and the submissions so far are excellent. If you have yet to submit your photos — do so before Sunday at midnight or you’ll miss a great opportunity to potentially have your photography on display in a real live gallery. The application can be found here.