Twin Caves The left cave is the largest of the three, and shows the most evidence of expansion. Similar Images ...based on the tags: archways, black&white, carvings, caves, graffiti... There are 700 of these storage bunkers. Their design was to funnel explosions upward, rather than toward other buildings, to minimize secondary explosions. The only thing that signals that this was an office building, rather than another production floor, is the small amount of wood paneling that remains. In the soft wood of the machine, an employee left their mark. The Sun Rooms, or Common Rooms, reminded me of the Panopitcon turned inside-out. At the bottom of the stairs to the caves is this collection of brick arches. I wonder what this area looks like now that a new tenant has taken over this building. From the summer a bunch of Australians visited Minnesota. The spectacular, if precarious, view of downtown Minneapolis from the roof of ADM Annex 4. Note the great messages left by various graffiti artists who made it to the spot. Sunrise in the orphanage… between classrooms and whispers. Harsh rail yard lighting throws shadows of broken windows against the line of boilers.