Cardiff Royal Infirmary as Alexandra Palace
The Doctor follows Magpie to the television studio to stop his plan.
Source: The Doctor Who Locations Guide
“The Idiot's Lantern” Filming Locations
Doctor Who episode “The Idiot's Lantern” was filmed in Cardiff, Newport, & London in the United Kingdom.
Cardiff Heliport as TV Transmitter
The Doctor stops Magpie from capturing everyone in the television.
Source: The Doctor Who Locations Guide
Alexandra Docks as Government Warehouse
The Doctor finds a government warehouse where the faceless people are being held.
Source: The Doctor Who Locations Guide
End of Lucas Street as Secret Base
Rose and the Doctor follow the government truck only to have it disappear.
Source: The Doctor Who Locations Guide
Florentia Street (Between Gower & Fanny) as Florizel Street
Rose and the Doctor investigate something going wrong with the televisions.
Source: The Doctor Who Locations Guide
35 Florentia Street as Connolly House
Rose and the Doctor talk to the Connolly family about their faceless Grandmother.
Source: The Doctor Who Locations Guide
Cecile Park & Gladwell Road as View of Alexandra Palace
The Doctor points to where the television signal is being transmitted from.
Source: The Doctor Who Locations Guide
Storefront on Blenheim Road as Magpie's Electricals
Magpie sells cheep televisions in order take people souls.
Source: The Doctor Who Locations Guide