It was proposed that Horizons would be the sequel to the Carousel of Progress (located in Tomorrowland at Magic Kingdom), Disney's ride from the General Electric Pavilion at the 1964 New York World's Fair. As the Carousel of Progress followed the changes in lifestyle that faced a family as they lived through the 20th century, Horizons continued their story, showing how they might live in the 21st century. The Carousel's theme song "There's a Great Big Beautiful Tomorrow" was part of the Looking Back at Tomorrow portion of Horizons. The version of "There's a Great Big Beautiful Tomorrow" that could be heard in Horizons coming from a television (sung by Larry Cedar) in the Art Deco scene is the exact version that can still be heard on a radio during the first act of the present Carousel of Progress.