TARDIS 3-D holo-simulation room

The Doctor's TARDIS had a 3-D holo-simulation room that could play mnemonic tableaus stored in the TARDIS memory banks.

The Seventh Doctor ending the 3-D holo program (COMIC: Flashback)

The Seventh Doctor used it to show Bernice Summerfield a scene from Gallifrey's history. (COMIC: Flashback)