… And if she gets closer, how suspiciously similar is it? The buildings around it, too – are they the same as before?

Yeah... yeah, pretty suspiciously similar. One might be tempted to call them "identical."

… Then if she continues in a similar direction to how she went before, does she, perhaps, come across the same tower again?

Yeah. Yeah, she does.

… And if she retraces her steps from this tower back along the route that previously led to the office with the door to her room, are said office and her room still there?

It does take exactly as much time as it did the first time around, she's been walking for a while, but eventually yes, it's there.

Yeah, she expected as much.

She decides to continue exploring, maybe going into a few buildings, since she seems to be trapped in a fixed area – even if it is rather huge. Perhaps she'll go back to that bakery.

The bakery is there, waiting for her, with tasty-looking goods visible through the window.

Are there any bags in which to place said tasty-looking goods? So she can grab some now and continue walking around?

She's not planning on eating them yet – she'll need to get a bit more than slightly peckish to decide to eat the mysterious food – but it'd be useful to have them around, especially if this place has some sort of hidden ways in which it reacts to people. For all she knows, the bakery will disappear in an hour, never to be seen again.

There might be, behind the counter, but they're not visible from the outside.

Well, she will go into the store and look for some bags, then.

And hopefully not be eaten by some lovely monster.

The inside of the bakery is—different. More specifically, it is not the inside of a bakery: it is a dining room, with rather expensive flatware and lots of freshly-prepared food served on the table. Actually, there's freshly-prepared food on the floor, and on the chairs, too. There's a lot of food.

… Is there enough space on the floor that she can safely walk around without getting food on her shoes? She'd really rather not get food on her shoes.

Yep.

Oh, wonderful.

Is it literally just food everywhere in this room? Even if she checks under the tables? And are there any doors that she could go through, perhaps to explore some sort of fun labyrinth?

She's really quite amazed by this place. If it weren't for the ominous feeling, it'd be quite enjoyable just exploring it.

It really is everything you'd expect of a fancy dining room, plus much more food than that. And across the room from her is, yes, another door.

Then she will go over to the door and open it.

A meat-packing facility! Without any meat. Or... any anything, really, other than the underlying structure.

Also the floor is lava. Literally. It is. Made of lava.

Okay, wow no. She backs away from the room rather quickly – lava is hot, in case people didn't know.

What the hell is this place?

Now that she backed away, it is a dining room.

A dining room with a stupid amount of food and a door attached to a building with lava for a floor. Yes.

She will just retrace her steps, grab some food if it looks non-crumbly and potentially like she can hold it without making a mess (like some bread, possibly), and then walk out of the building and select another one. The bakery was apparently not a good idea.

Unfortunately the door that ought to lead outside now leads to a school cafeteria, with lunch trays in the open, on the floor, scattered about as if someone had looted the place.

Oh.

Well. Hopefully she won't need to get back to her bedroom anytime soon.

She walks around the cafeteria, checking to see if that's the only alteration to this place – can she get into the kitchens that are presumably attached to the cafeteria? Are there any other doors here?

There are doors to what's presumably the kitchen, and she's coming from a door that might normally lead to a hallway.

… You know, she might just quickly re-open that door to see if it returns where she expects it to go, at least right now. Does it?