This revised and updated edition of the classic in its field is an essential reference tool for all students of Christianity. Listing archaeological sites vital to an accurate understanding of the origins and developments of the great western religions, it also contains app. 100 pages on ancient Churches and Monasteries. Organised alphabetically and in four volumes this comprehensive work contains over 400 articles prepared by more than 150 scholars around the world. Lavishly illustrated with more than 2000 maps, plans, charts and drawings.