Here are some key locations:
* The Torchwood Hub: The iconic building used as the Torchwood headquarters was actually a former coal-fired power station in Cardiff Bay.
* Other Cardiff Locations: Many scenes were shot on location in Cardiff itself, including the city center, Bute Park, and various streets.
* Other Welsh Locations: The show also ventured outside of Cardiff to film in locations such as:
* Llanelli: Used for the scenes with the "Miracle" in the episode "Cyberwoman".
* Pontardawe: Used for the scenes with the "Rhys-ing" in the episode "Sleeper".
* Other areas: The show also made use of various other locations in Wales, including the Brecon Beacons National Park and the Welsh coast.
However, some episodes did feature filming in other locations:
* Episode "Adrift": Filmed in a studio in London.
* Episode "Fragments": Filmed in a studio in Cardiff.
* Episode "Children of Earth": Filmed in a variety of locations, including:
* London: For the scenes with the "Children of Earth" in the Houses of Parliament.
* Cardiff: For the scenes with the "Children of Earth" in the Torchwood Hub.
Overall, while some episodes were filmed in other locations, the majority of Torchwood was filmed in and around Cardiff, Wales, making it a showcase for the beauty and variety of the region.