Canary Wharf
From Tardis Wiki, the free Doctor Who reference
Canary Wharf tower, One Canada Square or Torchwood Tower was a building located in central London and home to Torchwood 1.
It was built to reach the height of the Radar "black spot" which and was involved in experimental "ghost shifts", however these opened the Void and let the Cybermen and Cult of Skaro enter this universe. After the resulting Battle of Canary Wharf, Torchwood 1 was destroyed and the tower lost its original purpose. (DW: Army of Ghosts / Doomsday)
