The Dwellings of the Philosophers (French: Les Demeures Philosophales), published in 1930, is a foundational 20th-century alchemical text attributed to the mysterious author Fulcanelli. The book is a detailed exploration of hermetic philosophy, primarily decoding the alchemical symbolism hidden in medieval architecture and civil constructions, rather than relying on traditional written texts. Fulcanelli is a pseudonym for a French alchemist whose true identity remains unknown, fulfilling an alchemical oath of silence. His work is considered a masterpiece for its ability to connect alchemy with art, literature, and science.