One day, while I was stationed in HI, I was with a friend on NAVSTA Pearl Harbor when we found ourselves outside what I believe is the oldest and largest wooden structure on the post - what used to be HQ CINCPAC in WWII. At one end of the building are a series of pillars holding up the 2nd floor balcony, that runs completely around the building. On one of the pillars, which are square, was a small bronze plaque placed next to a door built into the pillar. The plaque had a rather generic inscription on its face saying the cellar was the former location of the radio intelligence unit (FRUPAC - Fleet Radio Unit Pacific) commanded by Joe Rochefort, which was reading all of the IJN radio traffic (JN-25) for Nimitz. Fortunately the door was not locked, so he and I descended the short staircase and passed through the (former) guard post and sally port at the bottom, plus another (formerly) secure door. From there we were in the actual cellar where, I believe it is safe to argue, WWII in the Pacific was decided. The tile was still on the floor and the outlines of the various machines were plainly visible in old wax, etc. on the tile. Some of the machine sites still had their connections coming up out of the floor. At the time of Midway, the old trans-Pacific cable from the West Coast to the Philippines had been severed. The link to the West Coast was out, but for some reason the link to Wake Island was open, despite it being occupied by the Japanese. This was used periodically for fun by staff in the radio intel unit to bat out an obscenity to Wake and get some angry-sounding morse snapping back. I found myself wondering which of those cables was that connection. Despite its then rather decrepit appearance (a shame, given the momentous events that were set in motion based on information obtained in this room) the atmosphere was still enough to fire the imagination. You could look around in the light of a couple of dim, unshaded bulbs and imagine the teletypes clacking away, telephones jangling, typewriters clicking, and the discussions and debates occurring all around you, only many years in the past. Men lived or died and the fates of nations turned based on the information obtained in that room. The sensation is difficult to describe.