It’s an old house that belongs to the university where I work. ~10 years ago it was renovated and turned into a themed house for residential students. The flat bit there with the linoleum or whatever was for a washer/dryer. Side note: If I had to stack two air conditioners for storage, I would put the smaller one on top.
Now, it’s office space, and I was working at the desk to my left in the pic. I kept rolling into it if I relaxed my legs too much. This would drive me absolutely bonkers. Luckily I was only there a few minutes.