The Doors’ The Crystal Ship is from their 1967 debut album The Doors. It was also the B-side of the number-one hit single “Light My Fire”. According to Doors drummer John Densmore it was a love song to Jim Morrison’s former girlfriend, Mary Werbelow.
Bonus fact: The TV show Breaking Bad references the song in the second episode of season 5, “Madrigal”, when Jesse Pinkman refers to his and Walter White’s Crystal Methamphetamine Lab Recreational Vehicle as “The Crystal Ship”, a name that Pinkman christened himself.