River assaults this German dinner party to get some appropriate clothes in episode 6x08 "Let's Kill Hitler".
Erich Zimmerman approaches the chancellery building in episode 6x08 "Let's Kill Hitler".
Amy, Nasreen Chaudhry, Mo, and the Doctor are taken to be executed in this chamber. Later the chamber is used for the human/silurian negotiations in episode 5x09 "Cold Blood".
Rose and the Doctor visit a space station to watch the end of the Earth in episode 1x02 "The End of the World".
The Face of Boe and Novice Hame work to rescue the Doctor from the chamber filled with dead senators in episode 3x03 "Gridlock".