Furthermore the same utility rooms here as in the other tower, only here the lights were on (!). And on the other side of one of the rooms, the door to the elevator room. I must have missed it because of the darkness in the other tower. Some heavy looking machinery, a gantry crane (?) and switchcabinets with old-fashioned relays (which make nice turnout motors on a model railroad btw). The switchcabinets were open, but it didn't look like anything was missing.

Gantry crane and switch cabinets

Machinery

Photo of the first tower taken from the roof of the western tower.