St. Peter's Basilica St. Peter's Basilica dome St. Peter's "baldachin," a bronze canopy above the… St. Peter's Basilica Statue of St. Andrew. St. Peter's Basilica st. Peter's baldachin beneath the dome of the basi… St. Peter's Basilica St. Peter's Basilica St. Peter's Basilica Worst tour moment. When we got to the Colosseum M… The port of Cassis with nearby limestone cliffs. Port of Cassis with imposing limestone outcrops in… Immense limestone outcroping above Cassis Harbor light at Cassis, France People sunbathe on the limestone slab "beach" near… Limestone and sandstone outcroppings from the ocea… Tour by boat of the calanques near Cassis. Calanq… Yacht club or hotel in one of the calanques Succesive layers of limestone deposits. Tour by boat of the calanques near Cassis. Calanq… Amazing how trees can take root and grow right int… Tour by boat of the calanques near Cassis. Calanq… Tour by boat of the calanques near Cassis. Calanq… Michelangelo's Pieta St. Peter's Basilica St. Peter's Basilica St. Peter's Basilica St. Peter's Basilica. The size and scope of this… St. Peter's Square The Vatican Last supper tapestry Vatican Museum tapestry Detail of a second tapistry of Christ leaving the… Vatican Museum Tapistry of the adoration of the Ch… The Vatican. The keys in this coat of arms are re… This bronze pine cone once part of an ancient Roma… The Vatican Roma The Colosseum The Colosseum The Colosseum The Colosseum Trevi fountain. Which one will the fountain bless? Trevi fountain.