
More than 4,500 years after it was built, the Great Pyramid of Giza continues to puzzle scientists. Constructed during the reign of Khufu, the monument is made up of roughly 2.3 million stone blocks, some weighing several tonnes, all assembled with remarkable precision. For decades, experts have debated how ancient workers achieved this without cranes, steel, or modern tools. Now, a new study led by Vicente Luis Rosell Roig, published in the journal Nature, offers a compelling explanation that blends engineering logic with archaeological evidence, pointing to a hidden construction method embedded within the pyramid itself.