Canary Wharf

The Canary Wharf area of London was home to Torchwood Tower. (DW: Army of Ghosts/Doomsday)

Shortly after the change-over from 1999 to 2000, due to Ashley Chapel's use of the Millennium Codex, a triangular area of London centred at One Canada Place transformed into a place called the Great Kingdom. (MA: Millennial Rites)

A major battle between Daleks and Cybermen took place there. (DW: Doomsday)

Alternate timelines
The Doctor's TARDIS materialised at the Canary Wharf stop of the London Underground in an alternative version of 2006, in which London had suffered major destruction. (PDA: The Time Travellers)