Fievel is dead on. If you have ever seen WDW HM from an arial shot, the building is huge and right behind the facade.
In DL the HM is a free standing building, you can see all sides, the show building is outside the park proper, on the "other side of the tracks."
It is facinating to watch the room stretch in WDW. There are a series of layers to the wall. The first is the wood paneling that in the begining goes from the floor to about 6ft high. Capping the paneling is a wooden ledge that encircles the whole room with gargoyles holding candels at each of the angles. The next layer is the striped wall paper above the ledge with the last layer being the paintings that are on their own strip of wallpaper that is hanging an inch infront of the actual walll.
When the effect begins the ledge starts to rise (ending about 12ft above you), exposing more paneling, strips of wallpaper with the pictures on them rises faster as to show more of the scene that was hidden, and the ceiling rises so that it stays insinc with the picture strips. Fantastic
The floor and mis-timed doors are the clue that there is no lowering involved.
FYI, there are two stretching rooms in WDW, one on each side of the fireplace. Accomodates maximum traffic flow.
One of my 3 favorite rides.
