A colleague has just passed me this newly digitised image of Swansea city centre taken in 1970. It shows the then newly-constructed subway and roundabout, which have recently been filled in as part of the redevelopment of the city centre. The image comes from the Central Office of Information Collection in the NMRW. This image collection is being digitised at the moment.
Underpass as Roman amphitheatre with a clinical twist.
Here is a link to the online exhibiton celebrating Swansea's 40th birthday as a city. Thanks for the comment letting us know about this.