The monorails at Disneyland are "sitting room only" and
are very small. They serve only as a ride in Tomorrowland, though
they do make a stop at the new Downtown Disney station.
When Disney's California Adventure opened, no additional monorail
stops were added though it does go through the entrance over a Disney-sized
version of the Golden Gate Bridge. The monorail also passes through
(without stopping) the Grand Californian Hotel.
Trivia: Disneyland had the first operational monorail in
the western hemisphere.
Trivia: If you ask nicely, you can ride up front with the
driver. At least you used to be able to. The events of September
11 may have changed this. (I can't imagine how someone could hijack
a monorail, but what the heck...)
The Florida monorail system is one of two ways to reach The Magic
Kingdom. The monorails are huge and have standing room inside as
well as seats. The original monorail track serves TMK, the parking
area, and several resort hotels. There is a second monorail track
that goes between the Transportation and Ticket Center and Epcot.
Trivia: When the Dolphin and Swan hotels were built, there
were plans for the monorail track to be expanded and go through
them. You can still see the area where the monorail would
have gone into the hotel. Rumors say that bases for monorail track
were also put down around the Disney/MGM Studios as well, though
no monorail expansion has happened since Epcot opened in 1982.