Walking from the Disneyland plaza into Tomorrowland, it is difficult to comprehend at first that the Carousel Theatre, partly visible behind the PeopleMover and the Mission to Mars, is a completely circular building. Once you arrive at the point where a view of the theatre is not blocked by any other structure, your proximity to the wall of the theatre reduces its curve and makes it appear straighter, just as proximity to the earth's surface causes it to seem flat. As a result it is mildly perplexing to pass the turnstiles, after depositing an 85-cent ticket, and follow the metal guide rails that lead to the outer wall of the theatre. However, it is at most a four-minute wait until the entire theatre turns itself and brings a door in front of the spot where you are standing. This door opens automatically, and you are permitted to enter a comfortable 240-seat auditorium just in time for the beginning of America Sings, regardless of what time it is.