At the Terme in Bagni Caldi I found a painting of Bagni Caldi. It is a view from Ponte a Serraglio.
The bridge in the painting isn’t in the same position as the current one, but several of the buildings still exist.
Here is a photo taken today from the spot where the artist must have stood.
The old hotel, Villa Pio X and Villa Talenti are visible, but San Giovanni baths are hidden by trees.
In the photo below you can see the restored Doccia Bassa below Villa Talenti.
I don’t know when the painting was done. Perhaps somebody out there knows. I might take another trip to Terme for more information.