The Colesseum (The Flavian Ampitheatre), Rome, by the Flavic Dynasty Emperors Vespacian, Titus, and Domician
Greek-derived decorative weight non-bearing columns (so slimmer + taller) as well as structural arches (21 h 29 min, 1 janv. 70 ans – 1 h 22 min, 1 janv. 100 ans)