When’s the last time you visited Disney World or Disneyland? A few months ago? A few years ago? When you were a kid? Never? No matter when you last went on a Disney vacation, there’s a lot of great reasons to look forward to on a visit to Disney World or Disneyland in 2017. Pandora in Disney’s Animal Kingdom This summer, Disney’s Animal Kingdom, the biggest Disney theme park in the world, will receive it’s biggest expansion ever: Pandora - The World of Avatar.