The TARDIS (Time and Relative Dimension in Space) is a time machine and spacecraft in the British science fiction television programme
Doctor Who and its associated spin-offs. A TARDIS is a product of the advanced technology of the Time Lords, an extraterrestrial civilization to which the programme's central character, the Doctor, belongs.
The interior of a TARDIS is much larger than its exterior. But how big is Doctor Who's TARDIs exactly and what is it worth?
(thanks Sally)