sshindel
The Epcot Manifesto
The apartment in the castle was being built well before Walt died. Unfortunately it had to be stopped because of the snakes. That's why Walt put Future World into EPCOT, to have a future without snakes so he could go back and build his apartment.
I love this little known fact. The stories of Walt sending his Imagineers out to find a large enough snake free section of the 42000 acres available for the Florida Project are legendary. The story Marty Sklar tells if he's had a few Manhattens about the time he mistook a Timber Rattlesnake for his surveying tripod is epic.