Bricked-Off Doorways in Tunnel The tunnels were full of bricked-up doorways. I wonder how many rooms under there are totally sealed from the outside world… Similar Images ...based on the tags: arrows, bokeh, dark, hallways, long-exposures, signs, stencils... If there were no other options, operators could climb this ladder from the Communications Room to the surface, after opening two heavy steel hatches, of course. The main gate, as seen in 2005. It hasn’t changed much since then. About a century later. A view of the main factory building, looking toward the two furnaces. Below the pressure gauges are rows of little pipe fitting drawers. Canal Park (see bridge) and some of old downtown, formerly Duluth City Hall and Police Department (center-left). At least one star has appeared in the sky… Dominion was acquired by UGG, which designated the elevator ‘M’. Their offices still have safety signage. Looking into the Pool 8 Annex from the original Ogilvie’s elevator. Glowing observation windows–and someone forgot to lock a patient’s door… I get dirty.