Cluny Abbey: The Lost Holy City

In the heart of Burgundy, the small town of Cluny holds a secret. The abbey standing tall in the city center is a mere fragment of what the 11th-century Maior Ecclesia once was, the biggest church ever conceived at the time, a feat that was accomplished in less than 70 years. Thanks to incredibly realistic 3D models and interviews with the best experts, these architectural wonders are explained.