In Greek mythology, Phaethusa ("radiance") was a daughter of Helios and Neaera, the personification of the brilliant, blinding rays of the sun. With her sister, Lampetia, she guarded the cattle of Thrinacia[?].
... are these stations, all of which were at the far end of the Metropolitan Line, and stretch the definition of "tube station" a little:
Waddesdon tube ...