Treppenflur One of the staircases that connected the lab, the plant, and the offices. Related Similar Images ...based on the tags: graffiti, staircases... The great entrance to the Service Building shows the detail once present in the old hospital. Looking up the grand stair at the second floor. Ruined cars abandoned in the generator hall, long after its namesake was scrapped. The bottom of the stairs leading from the work floor to the cafeteria. Watching the sun set behind downtown Detroit is my favorite memory from the building. Jef throws open the back door of an alley for the trailing photographers and historians. An iron gate separates vaults below the barracks. One of the large barracks. All of them are overgrown like this. “What’s that diamond thingy on the Pilot House?” you ask? It’s a 1920s-era radio transmission direction finder, a pre-radar navigation aid. Lit with diffused flash.