There's a certain type of old office with the yellow windows, cielings, walls and blinds. Strange stains everywhere and visible ducting all over the place. It feels homely to me. Modern offices feel cold and without soul, lighting is too bright and lacks natural sunlight. The offices of old you get the yellowed softened sunlight showing all the dust particles in the air.
The one i went to was basically empty. Areas cordoned off with a handful of staff left. A random bucket in the middle of the room to catch a leak. Dark corridors and flickery tube lights. I sat in a room with the window open listening to the breeze rustle the tobacco stained blinds.
It is definitely not just you that gets certain... feelings about such places. A strange familiarity. The realization that most of us do was even a bit of an internet phenomenon for a while.