Even the original Ryman concept showed all of Fantasyland contained BEHIND castle walls. Each of the lands has a gate of sorts with the land behind it. Much as Disneyland is today, even without the massive castle walls.
Home In The Parks: Yellow Sky Tower Ride at Disneyland, Fantasy Faire, Refurbishments and Celebrations Herb-Ryman-Disneyland-Map-Fantasyland-enlarged
Herb-Ryman-Disneyland-Map-Fantasyland-enlarged
