There are hundreds of implications. To pick just one: When Captain Jack Harkness (John Barrowman) clung to the outside of the TARDIS in "Utopia" (2007), he was riding with Sutekh to the literal ...

What does 'TARDIS' stand for on Doctor Who? And how come its interior is always changing while its exterior remains the same?

Watch the video above as a guide and check out some of the extra steps below to make your own bigger-on-the-inside, smaller-on-the-outside TARDIS! You can use this a cosy book nook to decorate ...