One theme which I remember to this day is Lofty Castle theme. Lofty Castle is a castle in mid-air, this world is filled with floating armored Gnorcs and Fairies in cages. As with all of the Dream Weaver worlds, Lofty Castle is a gigantic, beautifully-carved, white and gold monument floating atop various lushly-decorated levitating islands. The spires and towers reach high into a red, pink, and blue sky filled with nearby orbiting planets.
I was very young and unexperienced player back then. This was one of the most enjoyable levels and fairly simple, at least to my mind. But it didin't took anything from the place itself. It was magical to see a flying castle. Intriguing environment to say the least.