Summary: For the latest version of this audio tour, download the (free!) Rick Steves' Audio Europe™ App — available for Apple and Android. Learn more at https://www.ricksteves.com/watch-read-listen/audio/audio-europe The greatest church in Christendom has a cavernous interior, a grave of St. Peter, and the Pieta — all under the watchful presence of Michelangelo's magnificent dome.
