Walsingham in Norfolk remains a place of pilgrimage, steeped in high Anglicanism and exuding spirituality.
There's plenty to see, although nothing is left of the original shrine but a marker on the grass in the ruins of the Abbey; it was destroyed by Henry 8th early in the Reformation.
The rest of the module was filmed at Much Wenlock in Shropshire, which is a powerful and impressive place. I think I've been a bit unfair to it, using it as an illustration of monastic excess. It's a wonderful example of a Cluniac priory from the 12th century.