1. Pierrefonds Castle, France
Pierrefonds looks like a 14th-century fortress, yet it is a 19th-century masterpiece. We uncover how a ruined stronghold became a revolutionary hybrid of Middle Ages and Industrial Age innovation.
Ancient Superstructures — Season 4
How did ancient civilisations raise monuments that still defy explanation? The fourth season of Ancient Superstructures, confronts this question with unprecedented ambition – moving from satellite imagery down to the microscopic level to reveal the hidden logic behind structures that have outlasted every empire that built them. This is not mythology dressed as history. This is forensic investigation of some of humanity’s most astonishing achievements.
2. Acropole of Athens, Greece
Rising 80 metres above Athens, the Acropolis is a high-speed engineering feat forged in an age of war and political ambition. This episode decodes the logistics behind the Parthenon.
3. Neuschwanstein, Germany
Neuschwanstein is Louis II of Bavaria's 19th-century fairy-tale castle that inspired Walt Disney. Inside, medieval fantasy hides modern innovation: steel beams, plumbing, and central heating.
4. Sagrada Familia, Spain
Begun in 1882, the Sagrada Família became Gaudí's radical engineering laboratory. In 2026, the church yet to be finished, builders use modern engineering to raise the 170-metre spires above Barcelona.
5. Aachen Cathedral, Germany
Aachen Cathedral is a 1,200-year engineering marvel. We decode the 'smart' mortar, the hidden iron ring stabilising the cupola, and the metal reinforcements that let stained glass replace stone.
6. Medieval City of Carcassonne, France
For 2,600 years, Carcassonne has stood as Europe's ultimate fortress. Blending archaeology and engineering, we learn how innovation, strategy and restoration shaped an 'impregnable' citadel.