The famous structure in Rome known for its ancient amphitheater is the Colosseum, also called the Flavian Amphitheatre. Completed in AD 80, it was used for gladiatorial contests, public spectacles, and dramas, showcasing the grandeur of Ancient Rome. The architectural design features a series of arches and vaults, making it an iconic representation of Roman engineering. With seating for around 50,000 spectators, it exemplified the social and political life of the time. Although partially ruined due to earthquakes and stone robbers, the Colosseum remains a UNESCO World Heritage site and is one of the most visited tourist attractions in the world.