It’s the old circuit city HQ.
VA Republican, I just read an old post about you looking for other SAGE computer techs. I was stationed at Malmstrom, AFB in Montana from 1980-1983 as part of the 24th Air Division and regularly looked after the pair of IBM AN/FSQ-7 computers. I am curious to know if those were if fact the last ones to be decommisioned and what happened to them. The rumor at the time was that they would end up at the Smithonian, but I haven’t been able to find out any other information.