From the Acropolis and Carcassonne to Neuschwanstein, Aachen Cathedral and the Sagrada Familia, the world’s most iconic monuments still conceal vital secrets. How were they built without modern technology? What hidden structures explain their endurance? In Ancient Superstructures season 4, cutting-edge tools—satellite imagery, aerial scanning, photogrammetry, micro-analysis and 3D modeling—render these landmarks transparent. Like 3.0 explorers, we penetrate their stone envelopes, decode their engineering, and reveal the ingenuity, phases of construction and mysteries that have shaped their epic histories.
