I was watching an old TV special from the 20th Anniversary of WDW and they announced several projects that never came to be. They mentioned the "Mount Fuji" Matterhorn-type ride for the Japan pavilion at EPCOT, a Russian pavilion at EPCOT and a Roger Rabbit themed trolley car ride for MGM. Any idea why NONE of these ideas came to fruition?
Also, I'd heard about an abandoned Muppet ride - where did that one go??