Originally Posted By: tfabris
In fact, the more I look at it, the more it seems like someone took the photos on three separate floors, and fudged the stitching carefully to make it appear as though all the photos were taken from the same spot.


Exactly the point. The Photographer had to setup on three different floors. Each floor has a hole in it, and the floor goes all the way around.

The stitching isn't a simple match of overlapping rectangles.
_________________________
Glenn