Central London

Central London was the city centre of London adjacent to East London. (TV: The Caretaker) It included at least part of Westminster. (TV: Aliens of London)

The Circle line on the London Underground network encircled the very heart of London. (TV: The Web of Fear) Stops included Westminster, and both Cannon Street and Monument (PROSE: "London Underground Map") which were located in the City of London. (TV: The Lie of the Land)

History
In 2005, all of Central London was closed off following the destruction of Henrik's. (TV: Rose)

In 2006, a Slitheen craft crashed into Big Ben before landing in the River Thames in Central London. (TV: Aliens of London)

On 25 December 2008, the spaceship Titanic plummeted down to Central London and was stopped just short of crashing on top of Buckingham Palace by the Tenth Doctor. (TV: Voyage of the Damned) In Donna's World, the ship did infact crash, a result of the Doctor having been killed beforehand, destroying London and flooding the whole of Southern England with radiation. (TV: Turn Left)

London was gridlocked at its city centre when the 456 arrived in 2009. (TV: Children of Earth: Day Three, Children of Earth: Day Four)