LEGO room

From Tardis Wiki, the free Doctor Who reference

The Eleventh Doctor had a LEGO room in the TARDIS. It was dedicated to the Doctor's LEGO.

When once separated from the Doctor in the TARDIS, Clara Oswald guessed he might be in it. However, she couldn't find him — or it — because the TARDIS' interior had been rearranged. (COMIC: Sky Jacks)