At least in my old middle school they made an effort to make things look different, even though it was ultimately the same hallway repeating itself for five floors (four actually, one of those is the boiler/butcher/storage rooms).
They made sure each recurring hallway had different color lockers, so you can at least tell if you went around in a big circle or not. But to add to the confusion the main entrance is on the third floor, because it's on a hill. Yet somehow, on the second floor, you can still see outside the windows and you appear to be at the same ground level as the third floor.
I always thought it was weird that a big part of the fifth floor around where I used to take my German class was blocked off and between classes the teachers would stand outside and make sure nobody went in. From what I could see through the little fence thing they put up, it was another copy of the same hallway only all the electricity was cut off and it was really dusty like no one had gone in for years.
Being sixth graders we all spread rumors that some girl died in there while they were building it and now haunts that part of the building, and that one of us went in once and saw this girl flying around.
Now, as for my new school, it's much smaller, and the hallways look different, but all the lockers look the same so I keep thinking I'm on the other side of the building until I realize I have located my locker again.
