El progreso del peregrino
Scholars have pointed out that Bunyan may have been influenced in the creation of places in "The Pilgrim's Progress" by his own surrounding environment. Albert Foster describes the natural features of Bedfordshire that apparently turn up in "The Pilgrim's Progress". Vera Brittain in her thoroughly researched biography of Bunyan, identifies seven locations that appear in the allegory. Other connections are suggested in books not directly associated with either John Bunyan or "The Pilgrim's Progress".