New Orleans Square was not built at The Magic Kingdom since Florida
was already pretty close to the real New Orleans. Instead, an entirely
new section was added: Liberty Square.
Liberty Square is home to Hall of the Presidents and The Haunted
Trivia: Liberty Square was going to be built in Disneyland!
A new Liberty Street would have gone East on Main Street just past
the Opera House (and hat shop) where the parade route begins/ends.
This street would have turned into Liberty Square complete with
a Hall of Presidents and other patriotic displays. You can currently
see the concept map for this area at the Disneyland Opera House.