Engineering an empire. Episode 14, Da Vinci's world / produced, written and directed by Dana K. Ross, Gabrielle Mahler ; produced by KPI for the History Channel
The engineering and/or architectural feats that were characteristic of some of the greatest societies on this planet. After the fall of Rome, Italy fell into a dark sleep and wasn't reawakened until the 11th century
Notes
Title from resource description page (viewed August 26, 2019)