The Colosseum is located in Rome, Italy. This iconic structure, also known as the Flavian Amphitheatre, was commissioned around AD 70-72 and can hold an estimated 50,000 to 80,000 spectators. It was primarily used for gladiatorial contests and public spectacles, including animal hunts, mock sea battles, and executions. The architecture and engineering of the Colosseum are remarkable, showcasing the ingenuity of ancient Roman building techniques. Today, it stands as a symbol of Rome's historical significance and remains one of the most visited tourist attractions in the world, reflecting the rich cultural heritage of Italy.