I love this cover. Note the white building to the left of Spaceship Earth - this was an early concept for the American pavilion which would have sat at the entrance to World Showcase in the 1978 design of Epcot!
To the farther left is The Land.
1978 #Epcot Center brochure:
You can see the placement of the American Adventure in the model here. Note the Land model is closer to the final version - whereas the painting is the earlier version as proposed by Tony Baxter.
