Disneyland

Disneyland, was a popular American theme park.

Disneyland was mentioned by the Navarinos as their destination. (DW: Delta and the Bannermen)

The Doctor was not impressed with Disneyland, and told Rose Tyler he could take her somewhere with real talking mice. (NDA: Winner Takes All)

Behind the scenes
During the late 80s (even before the original series was cancelled), early 90s (prior to the TV movie being produced) when the Walt Disney Company (the people who own Disneyland) were on a buying frenzy and bought things like the American Broadcasting Company, ESPN, and others. Disney attempted to buy the rights to Doctor Who and its video library. Had Disney been sold the rights they would have set up a walk-through exhibition of what it's like inside a TARDIS at Tomorrowland. They even planned on whether the need comes, they would announce who the next Doctor would be at Disneyland during a press conference at Tommorowland (rather then at the BBC news studios like the BBC did)

During the 70s, Doctor Who attempted to have a serial filmed on location at Disneyland involving The Third Doctor (then when Jon Pertwee left the show) The Fourth Doctor tracking down an alien at the theme park. However budget restraints forbid it.

Many fans speculated that if Disney bought the rights to the franchise, Tom Baker (the most recognisable man to play the Doctor) would have been named a Disney Legend (what Disney calls their Hall of Famers) an award given to those who have made an outstanding contribution to The Walt Disney Company.

Trivia
Former Disneyland Employee, Steve Martin, is a huge fan of Doctor Who. He had even expressed a very great desire in playing The Eighth Doctor.