It remains the book for which Bunyan is best remembered. The images Bunyan uses in "The Pilgrim's Progress" are reflections of images from his own world; the strait gate is a version of the wicket gate at Elstow Abbey church, the Slough of Despond is a reflection of Squitch Fen, a wet and mossy area near his cottage in Harrowden, the Delectable Mountains are an image of the Chiltern Hills surrounding Bedfordshire. Even his characters, like the Evangelist as influenced by John Gifford, are reflections of real people. Further allegorical works were to follow: "The Life and Death of Mr. Badman" (1680), "Pilgrim's Progress Part II" and "The Holy War" (1682). "Grace Abounding to the Chief of Sinners", a spiritual autobiography, was published in 1666, when he was still in jail. In 1862 a recumbent statue was created to adorn Bunyan's grave; it was restored in 1922. In 1874, a bronze statue of John Bunyan, sculpted by Sir Joseph Edgar Boehm, was erected in Bedford. This stands at the south-western corner of St Peter's Green, facing down Bedford's High Street. The site was chosen by Boehm for its significance as a crossroads. Bunyan is depicted expounding the Bible, to an invisible congregation, with a broken fetter representing his imprisonment by his left foot. There are three scenes from "The Pilgrim's Progress" on the stone plinth: Christian at the wicket gate; his fight with Apollyon; and losing his burden at the foot of the cross of Jesus. The statue was unveiled by Lady Augusta Stanley, wife of the Dean of Westminster, on Wednesday 10 June 1874. In 1876 the Duke of Bedford gave bronze doors by Frederick Thrupp depicting scenes from "The Pilgrim's Progress" to the John Bunyan Meeting (the former Bedford Meeting which had been renamed in Bunyan's honour, and now houses the John Bunyan Museum). There is another statue of him in Kingsway, London, and there are memorial windows in Westminster Abbey, Southwark Cathedral and various churches, including Elstow Abbey (the parish church of Elstow) and the Bunyan Meeting Free Church in Bedford. Bunyan is remembered in the Church of England with a Lesser Festival on 30 August, and on the liturgical calendar of the United States Episcopal Church on 29 August.