TARDIS corridors

TARDISes such as the Doctor's had many generic corridors connecting one room to the next. (TV: Journey to the Centre of the TARDIS) Though varying in appearance, with some appearing to be made of bricks, (TV: The Invasion of Time) the corridors' walls sometimes had roundels like those of the TARDIS control room. (TV: The Masque of Mandragora, Logopolis, Castrovalva, Terminus) Sliding panels could be used to sequester areas of the network. (TV: The Doctor's Wife)

As the connective tissue between the infinity of rooms in the TARDIS, the corridors were always shifting. This made them a labyrinth for anyone who didn't have the special psychic relationship to their ship awarded the Rassilon Imprimatur. (PROSE: How did this creep get in here, Professor?)