1. The Control Room Through the Years
The most consistently seen part of the TARDIS, this room is used by the Doctor to single-handedly steer a time and space machine designed to be driven by no fewer than six simultaneous pilots.
2. The Library
Visited by Clara in “Journey to the Center of the TARDIS,” the library was often mentioned, but this was the first time it had been seen.
3. The Art Gallery
Shown off in the episode “The Invasion of Time,” the art gallery cleverly doubled as a hidden ancillary power station. A switch on the Venus de Milo shut off the illusion and allowed access to the emergency power.
4. The Wardrobe
A fine collection of both culturally specific clothing for any time or planet (that no one ever seems to take advantage of) and former outfits of the Doctor.
5. The Corridors Circa 2011
During “The Doctor’s Wife,” the corridors of the TARDIS are shown to be dark and foreboding, though originally had a brighter feel…
The Corridors’ Original Design
…and as of “Journey to the Center of the TARDIS,” their look has changed once again.
6. The Observatory
The Doctor appears to have snagged the telescope from the British aristocracy lycanthropy episode “Tooth and Claw” for his observatory.
7. The Cloister Room
The room is used to house the Cloister Bell, an alarm meant to be sounded only in times of extreme danger. It was considered a Cloister emergency only if the actual TARDIS was itself greatly threatened.
The Eye of Harmony
Housed inside the Cloister Room, the Eye is a power source for the Time Lords. According to the 11th Doctor, it was achieved by “[ripping] the star from its orbit, [and] suspend[ing] it in a permanent state of decay.”
8. The Swimming Pool (Then)
First seen during the episode “The Invasion of Time,” the swimming pool had not been seen in decades before reappearing in “Journey to the Center of the TARDIS.” It had been mentioned, however, and even figured into the saving of River Song’s life once.
9. The Engine Room
Though difficult to imagine what it looked like prior to exploding, it was nonetheless featured in “Journey to the Center of the TARDIS.”
10. The Engine Room Cloaking Device
Similar to the Art Gallery illusion earlier, this protects the TARDIS from prying eyes. The only way to access the engine room is by jumping into a seemingly bottomless ravine.
11. The Zero Room
Completely cut off from the rest of the universe, literally, the Zero Room is a rapid healing chamber, used when Doctors need an assist with a particularly difficult regeneration.
12. The Companion Room
Despite all attempts to the contrary, the Doctor is a sentimental man. In what amounts to basically a huge walk-in closet, he stores the keepsakes of former companions.
13. The Bedroom
Prior to the decimating Time War, the Doctor and his companions were occasionally shown at their ease in a variety of bedrooms.
14. The Architectural Reconfiguration System
Also known as the Tree of Life, this room serves as a way for the Doctor to create anything he needs. Making it partly the Room of Requirement from Harry Potter, and partly a “do over” button.
Bonus: The Blueprints
An approximation of the actual size and layout of the TARDIS.
This design leaves ample room for other rooms mentioned over the course of the Doctor’s tenure, including:
• Holding Ring - Preserved rooms
• Bathrooms - Minimum fourteen
• Box Room - Storage
• Cricket Club
• Salon/Boot Cupboard
• Croquet Court
• Sick Bay
• Drawing Room
• Sun Room
• Scullery Room
• Squash Court - Minimum seven