Skyridium

Skyridium is a city located in the Sky Realm. It is populated by Skyridians, who resemble classical fairies.

History
Skyridium first appeared in the episode On Wings of Song, where the Harp of Might was stolen by Sky Clone's imps. However, the Sky Dancers were able to retrieve the harp from the Nether World's maze, which enabled the Skyridians to fly once again. Skyridium was also the location of one of Rudolph Fareev's performances.