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 m, 1 ene 70 año – 1 h 22 m, 1 ene 100 año)