War Room
The War Room was a chamber within the Citadel on Gallifrey where the War Council of the Great Houses met to coordinate military efforts during the War and the Last Great Time War. (TV: The Day of the Doctor, AUDIO: Body Politic)
On the last day of the Time War, various incarnations of the Doctor contacted the War Room to coordinate their plan to save Gallifrey, by storing it in a pocket universe like a stasis cube. (TV: The Day of the Doctor) Meanwhile, the Twelfth Doctor visited the War Room to coordinate disaster relief. (PROSE: The Day of the Doctor)
The Saxon Master blew up the War Room after escaping Gomer's Asylum. (PROSE: Lords and Masters)