Westminster

Westminster was an area of central London containing the Houses of Parliament.

In the 13th century, a Rutan ship containing two doomsday weapons that could annihilate the Sontarans collided with the TARDIS, causing it crash into the future site of the Houses of Parliament.

In 1605, the Eleventh Doctor moved Parliament safely into orbit, allowing the Rutan Lady Elizabeth Winters' ship to take off. The Doctor rendered Lady Winters' weapons useless, and returned Parliament to its rightful place. (VG: The Gunpowder Plot)

Behind the scenes

 * According to Doctor Who: The Writer's Tale, originally in DW: The Stolen Earth or Journey's End, Prime Minister Fairchild was to have been exterminated by the Daleks at Westminster.
 * According to non-narrative material in DWBIT 1, Westminister was one of the forefronts of the Dalek's invasion in the 22nd century. A Dalek Saucer attacked London. The British government put all their best defences into battle against them, sending the Air Force's helicopters and fighters to attack the Dalek ship. Tanks fought across the streets, and the Navy fought with gunboats. The humans were persistent, destroying many Daleks, but in a matter of days the Daleks subjugated the humans.