Larger in scale and more detailed. If Larger and more challenging is what you’re after ICONX is perfect for you! Make a BIG impression with our premium line of DIY metal models. From steel sheets to 3D models this ICONX collection offers a larger size with enhanced detail. This massive stone amphitheater was commissioned around A.D. 70 by Emperor Vespasian as a gift to the Roman people. In A.D. 80 his son Titus opened the Colosseum with 100 days of games including gladiatorial combats and wild animal fights. The colosseum remained in use for more than four centuries.