Diadem

Diadem was a planet considered to be the most relaxing world in Mutter's Spiral. This changed after it was mined out by the Union for its jethrik and trisilicate. The Doctor visited the planet at some point by his fifth incarnation. (PROSE: The Crystal Bucephalus)
Category:Planets
Category:Mutter's Spiral planets
Category:Planets visited by the Doctor
Category:Leisure planets