Ok, PremEx, I know you've done some work with Disney (or do you work for them yourselves...), so help me out here.

Walt Disney World's Magic Kingdom is really on the "second floor". Below the public "outside" level is a unique system of "utilidors" (utility corridors) that run throughout the entire park. So "Cast Members" (employees) can go to their designated part of the park in coustume without walking through the public areas. Same with the characters. They appear through "secret doors" in shops, etc. Thus the effect of the coustumed employees and characters is not lost. This is not available at Disneyland.

So, PremEx, you don't climb any stairs when you enter the Kingdom, so when you arrive via Monorail or Ferry (from the T-T-C or Magic Kingdom Resorts) are you already on the second level? Obviously the utilidors can't be underground, as then they would be underwater.

And, here's an interesting story (don't read if you don't want to know a Disney secret!). If you visited the Living Seas at Epcot, you know that you take an elevator down to the visitor's level. Supposedly you decend 15 stories or something in like 25 seconds. A woman sued the Walt Disney Company claiming that the pressure in her ears from the rapid ascent/decent caused intollerable pain. Disney lawyers provided the lady's lawyers with the plans of the attraction that clearly show that the elevator is a fake, and doesn't go anywhere, except to shake and rattle for a minute. The suit was dropped.