Using a revolutionary technique known as Sub-Atomic Muon Tomography, researchers have identified a previously unknown network of subterranean hydraulic galleries beneath the 2,000-year-old Pantheon. The non-invasive imaging, which uses cosmic particles to peer through solid stone, revealed a complex system of lead pipes and vaulted chambers designed to manage runoff from the massive dome. These Roman engineering marvels have remained hidden for centuries behind meters of solid concrete and brickwork.
This discovery provides a breakthrough in our understanding of the structural preservation of the monument, as the galleries appear to have been instrumental in preventing water damage to the foundation. Conservationists plan to use this data to revitalize the ancient drainage system, ensuring the Pantheon remains stable as the city of Rome faces more frequent and intense rainfall events due to shifting weather patterns.