This area showcases some of the visual tricks Hollywood uses in its films. For example, street scenes from New York and San Francisco are housed smack in the middle of central Florida, while the Honey, I Shrunk the Kids Movie Set Adventure playground shows the effects of scale on a movie set.
The Street of America building facades here use a cinematic trick known as forced perspective, and it's also used throughout Walt Disney world. Forced perspective is the design pattern that gives buildings the appearance of greater height and scale. It is why the castle looks so grand and Everest looks so tall. In the Backlot area, it allows the designers to fit in the New York or San Francisco skylines in such a small space.
Playing with scale is also a feature of the Honey, I Shrunk the Kids Movie Set Adventure. Realizing there wasn't enough to do for small children, the Imagineers worked in record time to design and fabricate the attraction. This type of stage area is an example of another cinematic trick used in Disney films.