Doctor Who
Impossible Planet Surface
The Doctor investigates the mysterious seal on the surface of the planet in episode 2x08 “The Impossible Planet”.
Appears in 1 additional episode.
Also appears in “The Satan Pit”.
Source: The Doctor Who Locations Guide
Silo Surface
Martha, Jack, and the Doctor flee to the safety of the rocket base in episode 3x11 “Utopia”.
Source: The Doctor Who Locations Guide