Watch Secrets of the Parthenon for Free: How to Stream the Movie Online at 123Movies. . For 25 centuries the Parthenon has been shot at, set on fire, rocked by earthquakes, looted for its sculptures, and disfigured by catastrophic renovations. To save it from collapse, the modern restoration team must uncover the secrets of how the ancient Greeks built this icon of western civilization in less than nine years without anything resembling an architectural plan.