Great Portland Street tube station
Great Portland Street was one of the original stations on the London Underground network. (AUDIO: The Crimes of Thomas Brewster) It was located on the Circle line between Baker Street and Euston Square. (TV: The Web of Fear (animation, episode three) [+]Loading...{"timestamp":"00:02:29","var":"animation","ep":"three","1":"The Web of Fear (TV story)"}) It was also serviced by another line, depicted in rose pink, on a map of the London Underground network. Again the following station was Euston Square. It was located north of the River Thames. (GRAPHIC: "London Underground map" [+]Part of The Doctor: His Lives and Times, Loading...{"page":"40","namedpart":"London Underground map","1":"The Doctor: His Lives and Times"})
According to a map that British Army Corporal Blake and Craftsman Stephen Weams monitored during the so-called "London Event", it had fallen to the Mark II Yeti, whose captured territory was marked on a map of the Circle line in black. (TV: The Web of Fear (animation, episode three) [+]Loading...{"timestamp":"00:02:30","var":"animation","ep":"three","1":"The Web of Fear (TV story)"})
In 2010, it was the focus of an artificial rupture in the fabric of time and space caused by Thomas Brewster operating a time machine comparatively more primitive than the TARDIS. It allowed him to transport a train of people from Earth to Symbios.
In tracking down this time machine, the Sixth Doctor and Patricia Menzies landed in the original foundations of the station where they noted its old brickwork and its rats. (AUDIO: The Crimes of Thomas Brewster)