Movies Filmed at Tower of LondonTower of London, The Tower Of London, London, Greater London EC3N 4AB, UK
The Tower of London is a collection of structures dating back to the construction of the White Tower in 1078 by William the Conqueror and was expanded throughout the 12th & 13th centuries. Today, most of the tower is dedicated to tourism, with the Crown Jewels being the biggest draw.
Tower of London (aka UNIT HQ)
Appears in 1 additional episode.
Also appears in “The Day of the Doctor”.
Source: The Doctor Who Locations Guide