I remember seeing a sci-fi book cover back in about 1980/81 at my public library that was likely based upon an earlier painting. It depicted an arid desert scene with the landscape dominated by a group of mesas in the distance. The nearest mesa had a gleaming city-ship atop it. In the distance you could see an identical city-ship just arising from another mesa.
I remember thinking that this was an awesome painting and I wish I could locate what the title of the painting was and its artist, if at all possible. I would love to see this painting again, but I never have.