White House
From Tardis Wiki, the free Doctor Who reference
The White House, located in Washington, D.C., was the seat of the government of the United States of America and home of the President.
On Christmas 2009, President Barack Obama was giving a scheduled speech direct from the White House when, like everyone else, he was converted into a copy of the Master. (DW: The End of Time)
During the Orion War, the President of Earth was based in the White House. (BFC: Scorpius, Fear, Conversion)
