They should add griffins at the foot of the right staircase. Then, we could get a better look at them. ;-)
---------- Post added 02-23-2012 at 10:08 AM ----------
I think it is supposed to be a grand staircase, regardless of the bend.
---------- Post added 02-23-2012 at 10:19 AM ----------
Look at half of one of Buckingham Palace's grand staircases:
If you were coming up on the staircase in this image from the background, facing the part of the manor that is beyond the foreground, the staircase would appear to be bending just like the right side staircase inside Disneyland's Haunted Mansion. So, perhaps what we have with the Haunted Mansion's load area is an elevated landing, or a balcony at the brink of The Unknown.