Capitol
Talk2The Capitol (also known as the Citadel) was the home of the Time Lords on Gallifrey. (TV: The Deadly Assassin)

Added by Dalek.TimThe High Council met in the Capitol and there was a transmat system that linked the Council's room to the Death Zone. Other Time Lord buildings on Gallifrey included the Time Lord Academy. (TV: The Five Doctors, The Sound of Drums)

Added by DuduDoctorUnderneath the Capitol, at least two guards had security cameras pointed at a repair shop where TARDISes are being kept. (TV: The Name of the Doctor)
During the Last Great Time War the Citadel was badly damaged by Dalek Saucers even though the Capitol was protected by a system of dual-turrets that shot down the saucers. The crashed saucers remained on the surface next to the citadel. (TV: The End of Time)