In the 1960s, Lancaster - like a lot of cities in England - underwent a series of extensive developments. Many of the neglected and crumbling buildings in the city centre were demolished, and in most cases left as open spaces.
In these short films, the ghosts of a ruined city emerge again to remind us of what we've lost, and encourage us to savour what remains.
The original photographs are taken from a series slides, available in full at http://www.flickr.com/photos/grahamhibbert/collections/72157627305169809/