In November of 1989 when I was a sophomore at my suburban public high school, my photography class, along with our Pentax K1000s, took a "photo trek" field trip that began at the Christian Science Plaza and ended at Faneuil Hall. I remember passing through the corridors pictured above, and probably have photos of it somewhere (remember, this was back in the Film Times, but Tri-X and Pan-X film was cheap and provided in abundance courtesy of the Burlington Public Schools). If I remember correctly, the corridors at the Pru were unheated, but more or less indoors, but the plazas where the corridors meet were open to the elements. I remember that there was a Brigham's on the Boylston St end of the corridor (pictured above in post #129), around where the entrance to the corridor that now goes to the former Lord & Taylor. Many of the photos from that trip ended up in the 1990 edition of the school's literary and arts magazine. I remember taking a lot of photos of the pre-mall Pru. I'll search my parents' house next time I'm up there to see what I can find...