Written in the 17th century, The Pilgrim's Progress still speaks to readers today, vividly describing the joys and trials we experience as we await heaven while living the Christian life on earth. Bunyan's immortal characters—Christian, Obstinate, Pliable, and Mr. Worldly Wiseman, among others—are set in fascinating environments such as the City of Destruction, the Celestial City, and the Wicket Gate.