Legendary alchemist of the 19th and 20th centuries, Fulcanelli reveals the secrets of the symbolism of the great cathedrals of France. This edition includes the plates by Julien Champagne published in 1926, the prefaces by Eugène Canseliet published in 1926, 1957 and 1964, and the chapter on the cyclic cross of Hendaye introduced in the 1957 edition.