The Flavian Amphitheater, better known as the Colosseum, stands in the heart of ancient Rome. Built by the emperors Vespasian and Titus between 70-80 AD, the amphitheater is 157 ft high. Only a small portion of the original outer wall remains. Ancient sources state that over 9,000 wild animals were killed during the inaugural games in the Colosseum. The venue held between 50,000 and 80,000 spectators depending on its configuration at the time