The Colosseum is the largest ancient amphitheater ever built, and is still the largest standing amphitheater in the world. Construction began under the emperor Vespasian and was completed in AD 80 under his successor and heir, Titus. It could hold an estimated 50,000 to 80,000 spectators and was used for gladiatorial contests, public spectacles including animal hunts, executions and reenactments of famous battles. Colosseum necklace is a great item to start your Hepta FloorPlans collection!