L'Archéomètre is a French hardcover volume first issued in the late 1990s. Written by Saint‑Yves d'Alveydre, the work weaves together themes of religion, science, and antiquity, presenting a speculative framework that seeks a unifying key to diverse belief systems. Across its 332 pages, the author blends historical references with philosophical inquiry, inviting readers to contemplate the intersections of ancient knowledge and contemporary thought. The book’s dense, essay‑like style makes it a compelling read for those interested in esoteric studies, comparative religion, and the intellectual currents of the late nineteenth and early twentieth centuries.