3 Best Sights in The Vatican, Rome

The world's largest church, built over the tomb of St. Peter, is the most imposing and breathtaking architectural achievement of the Renaissance (although much of the lavish interior dates to the Baroque period). No fewer than five of Italy's greatest artists—Bramante, Raphael, Peruzzi, Antonio da Sangallo the Younger, and Michelangelo—died while striving to erect this new St. Peter's.

The history of the original St. Peter's goes back to AD 326, when the emperor Constantine completed a basilica over the site of the tomb of St. Peter, the Church's first pope. The original church stood for more than 1,000 years, undergoing a number of restorations and alterations, until, toward the middle of the 15th century, it was on the verge of collapse. In 1452, a reconstruction job began but was abandoned for lack of money.

In 1503, Pope Julius II instructed the architect Bramante to raze all the existing buildings and build a new basilica, one that would surpass even Constantine's for grandeur. It wasn't until 1626 that the new basilica was completed and consecrated.

Highlights include the Loggia delle Benedizioni (Benediction Loggia), the balcony where newly elected popes are proclaimed; Michelangelo's Pietà; and Bernini's great bronze baldacchino, a huge, spiral-columned canopy—at 100,000 pounds, perhaps the largest bronze object in the world—as well as many other Bernini masterpieces. There are also collections of Vatican treasures in the Museo Storico-Artistico e Tesoro and the Grotte Vaticane crypt.

For views of both the dome above and the piazza below, take the elevator or stairs to the roof. Those with more stamina (and without claustrophobia) can then head up more stairs to the apex of the dome.

 The basilica is free to visit, but a security check at the entrance can create very long lines. Arrive before 8:30 or after 5:30 to minimize the wait and avoid the crowds.

Mostly enclosed within high walls that recall the papacy's stormy history, the Vatican opens the spectacular arms of Bernini's colonnade to embrace the world only at St. Peter's Square, scene of the pope's public appearances and another of Bernini's masterpieces. The elliptical Piazza di San Pietro was completed in 1667—after only 11 years' work—and holds about 100,000 people.

Surrounded by a pair of quadruple colonnades, the piazza is gloriously studded with 140 statues of saints and martyrs. At its center is the 85-foot-high Egyptian obelisk, which was brought to Rome by Caligula in AD 37 and moved here in 1586 by Pope Sixtus V. The famous Vatican post offices can be found on both sides of St. Peter's Square and inside the Vatican Museums complex. 

The main information office is just left of the basilica as you face it.

Angels designed by Baroque master Bernini line the most beautiful of central Rome's 20-odd bridges. Bernini himself carved only two of the angels (those with the scroll and the crown of thorns), both of which were moved to the church of Sant'Andrea delle Fratte shortly afterward at the behest of the Bernini family. Though copies, the angels on the bridge today convey forcefully the grace and characteristic sense of movement—a key element of Baroque sculpture—of Bernini's best work.

Originally built in AD 133–134, the Ponte Elio, as it was originally called, was a bridge over the Tiber to Hadrian's Mausoleum. Pope Gregory changed the bridge's name after he had a vision of an angel sheathing its sword to signal the ending of the plague of 590. In medieval times, continuing its sacral function, the bridge became an important element in funneling pilgrims toward St. Peter's. As such, in 1667 Pope Clement IX commissioned Bernini to design 10 angels bearing the symbols of the Passion, turning the bridge into a sort of Via Crucis.