The most obvious difference between these resorts: Walt Disney World and Disneyland, is their size. Disney World, located in Orlando, Florida, covers 43 square miles, that's about twice the size of Manhattan or roughly the size of San Francisco. It's home to four theme parks: the Magic Kingdom, Epcot, Disney's Hollywood Studios, and Disney's Animal Kingdom. The icon of Walt Disney World is Cinderella Castle.
Whereas in Disneyland, located in Anaheim, California, this resort is much smaller, sitting on about 500 acres. It's home to two parks, Disneyland Park and Disney California Adventure, and its centerpiece is Sleeping Beauty Castle.
In Walt Disney Epcot, the future world which highlights the space plus, soaring the world via gliding and all the rides therein including the world showcase of selected countries, are the main center attractions in this park.