I know it seems like blasphemy to mention it here, but this weekend's episode of Star Trek: The Original Series: Remastered is "The Cloud Minders", where the Enterprise visits a city in the clouds. TrekMovie.com posted a preview image that looks very familiar.
There is so much attention to detail in this, as each building perfectly matches the original painting:
I wish we could get CBS-D to help us with Revisited...