Ancient Rome and Colosseum Tour: Underground Chambers, Arena and Upper Tier. Experience the full glory of Rome's Colosseum on a walking tour with skip-the-line entry! Accompanied by an expert guide who is passionate about Roman history, you'll gain rare access to areas of the Colosseum that are newly opened or normally off-limits. Enjoy private viewings of the Colosseum's underground chambers, arena and upper level, and then head to the Roman Forum and Palatine Hill for unforgettable views of Ancient Rome. Book and Save 20% Off Ancient Rome and Colosseum Tour: Underground Chambers, Arena and Upper Tier.