On day three, visit the magnificent St. Peter's Basilica, the largest church in the world. Explore the grandeur of the interior, adorned with stunning sculptures, mosaics, and intricate architectural details. Climb to the top of the dome for a breathtaking panoramic view of Vatican City and Rome. Take a moment to appreciate the religious significance of this holy site and attend a mass or participate in a guided tour to learn more about its history and significance.