Roof Walk Often the quickest way to move between buildings was to take the roof. The inside of the complex was so maze-like, I don’t know how I would have found my way around. Similar Images ...based on the tags: graffiti, people, quarantine, rooftops, tanks... A caustic tank in one of the unremodeled brewhouse backrooms. The taller of the two smokestacks on site. Note the crack around its crown. One of the staircases that connected the lab, the plant, and the offices. A long exposure of the city glow illuminating the roof, highlighting the victorian and gothic influences on the brew house. The hiking around Central City is beautiful and full of history. Just get a proper topo map! The approach to Dock 4 is long demolished, so it is only accessible when the lake freezes. In the power house corner is this gratuitously gigantic doorway. It used to be even bigger, too, as indicated by the brick arch another foot over the top windows. This is the former air compressor house–one of them, at least–which turned steam power into air power to drive machinery across the production line. Delmar #4 is like two elevators in one, in capacity and design.