5. The Take Flight chickens appear in Buzz Lightyear's Space Ranger Spin

If You Had Wings opened at the Magic Kingdom in 1972, and was a dark ride designed to teach guests about the wonders of flight. It was replaced by Delta Dreamlight (sponsored by Delta Airlines) in 1989, before renamed once more as Take Flight when Delta's sponsorship eneded. Highlights included scenes from 1930s Tokyo and Paris, as well as a trip through a jet engine.

Eventually, Take Flight was replaced by Buzz Lightyear's Space Ranger Spinin 1998. The laser gun ride still makes use of the original track and room structure, as well as the "speed tunnel" from Take Flight. The cheekiest tribute, though, is the inclusion of some cutout chickens that featured in both Dreamlight and Take Flight, which can be seen in the volcano room directly in front of the Star Cruiser.

4. The Horizons logo can be spotted in Mission: Space

Opened in 1983 - a year after the rest of EPCOT Center - Horizons was an Omnimover dark ride. Guests were whisked past scenes showing visions of the future, in what was essentially a sequel to the Carousel of Progress at the Magic Kingdom. It included scenes focused on communications, energy, transportation, physiology and man's relationship with the environment. 

Horizons operated until January 1999, when it was closed to make room for Mission: Space. There are several tributes to it sprinkled throughout the newer ride, including Horizons logos hidden in the center of the rotating "gravity wheel" in the queue and on the front of the cash register counter in the gift shop.

3. Footage from Mission to Mars can be seen in Mission: Space

Horizons isn't the only lost attraction referenced in the Mission: Space queue. The Epcot attraction is not the first Walt Disney World attraction to take guests on a trip to Mars. Mission to Mars, which replaced the outdated Flight to the Moon at the Magic Kingdom in 1975, saw guests boarding a "spacecraft" (which in fact contained a circular theater) for a trip to the Red Planet. 

In the Mission Control room in the Mission: Space queue line, footage of a bird landing can be seen. This is reused from the pre-show of both Flight to the Moon and Mission to Mars.

2. Test Track is packed with World of Motion references

Sponsored by General Motors, World of Motion was the anchor attraction of Epcot's Transportation Pavilion from 1982 to 1996. The classic Omnimover dark ride took guests through scenes populated by audio-animatronic figures that told the story of the evolution of tranportation, from the invention of the wheel to modern automobiles. These days, the site is occupied by Test Track - a much faster-paced take on transport technology.

Test Track was updated in 2012 to become Test Track - Presented by Chevrolet. There are tributes to both World of Motion and the original Test Track scattered through the updated experience. In the performance track, look out for a sign that identifies "Motion Drive", "General Motor Way" and "Chevy Lane" - tributes to the three attractions that have been housed in the building. Also inside the pavilion is a sign that references the World of Motion musical theme, "It's Fun to be Free". There are several World of Motion pavilion logos dotted throughout the show, too.

1. Elements from Snow White's Scary Adventures appear in the Seven Dwarfs Mine Train

The Seven Dwarfs Mine Train at the heart of the Magic Kingdom's New Fantasyland expansion is, of course, based on the story of Snow White and the Seven Dwarfs. However, it tells that story from the perspective of the dwarfs. Its predecessor, Snow White's Scary Adventures, was located on the current site of the Princess Fairytale Hall, and told the story from a more traditional perspective.

The Imagineers have thrown in two tributes to Snow White's Scary Adventures in the Seven Dwarfs Mine Train. Perched atop the mining structure are a couple of vultures, plucked directly from the defunct dark ride. We don't want to give away the ending - but look out for other elements that are recycled from the old ride in the final scene.

Find more hidden secrets at Walt Disney World

You can find hundreds more hidden secrets at Walt Disney World by reading this series of articles.