Doctor Who
10 Downing Street (interior)
The Slitheen take over Downing Street in episode 1x04 “Aliens of London”. The Master kills his cabinet in the rebuilt Downing Street in episode 3x12 “The Sound of Drums”.
Appears in 1 additional episode.
Also appears in “World War Three”.
Source: The Doctor Who Locations Guide
Swan Hydropathic Hotel
The Doctor drops Agatha Christie off at the hotel after an adventure in the TARDIS in episode 4x07 “The Unicorn and the Wasp”.
Source: The Doctor Who Locations Guide
