I promised a little thread on leisure centre postcards a while back - they aren't quite as, erm, "thrilling" as the shopping centres. However, we start with my two favourites - first up is Swansea:
And I am a big fan of this one - Morden Baths (recently demolished) as I used to have swimming lessons there! The building opened in 1967:
While we are resurrecting threads, here are a few more leisure centres, starting with the thrills of indoor bowling in Bletchley: