There's a restaurant in Seattle called Beth's Cafe. It's a greasy spoon, open 24/7. It's known for its 12-egg omelettes, and has been featured on Man vs. Food. You can draw while you're there, with pencil, pen, or crayon, and if it's good it will go up on the wall, which is wallpapered with some fantastic art. The food is outstanding, and it's one of my favorite places to eat while visiting there. Behind the building on a cinder-block wall, a couple of local artists painted their idea of what the inside of the cafe looks like.
It's starting to get faded now, but I took these photos when it was fresh. You can see the cinder-blocks and the mortar lines.
Edit- forgotten detail: Once when I was there, I drew (with the correct color crayons) a S&W revolver, with a big ball of flame bursting out of the muzzle. The caption was, "Beth's Cafe Makes My Day!" Apparently, not politically correct enough to make the wall!