Researchers uncovered that Karnak Temple’s origins lie in an island formed by ancient Nile channels, later expanding into Egypt’s grandest sanctuary. Credit: Shutterstock Most complete study of the temple complex and its landscape establishes earliest occupation and hints at link to creation myth. Researchers have carried out the most comprehensive geoarcheological survey of Egypt's Karnak Temple near Luxor - one of the ancient world's largest temple complexes and a UNESCO World Heritage site