A symbol of the great power of the Ancient Roman Empire, the Colosseum is perhaps the most famous Roman monument in the city of Rome. It was the largest amphitheater at the time of the Empire and although it has partially disintegrated over time, still remains the best place to get a sense of life during the Empire. It was built by Emperor Vespasian and was used for gladiator and lion fighting as well as a venue for public trials and executions. The stone steps will take you down to the underground corridors where many a gladiator contemplated their fate before battle. The higher steps are now accessible to the public, and are worth the climb for the incredible panoramas of the Roman Forum.