20 places across Rome, Florence and 8 more cities — ranked by traveler ratings, with photos and where to find each one.
The Colosseum is an elliptical amphitheatre in the centre of the city of Rome, Italy, just east of the Roman Forum. It is the largest ancient amphitheatre ever built, and is the largest standing amphitheatre in the world.
The Trevi Fountain is an 18th-century fountain in the Trevi district in Rome, Italy, designed by Italian architect Nicola Salvi and completed by Giuseppe Pannini in 1762.
The Pantheon is an ancient 2nd century Roman temple and, since AD 609, a Catholic church called the Basilica of St. Mary and the Martyrs in Rome, Italy. It is perhaps the most famous, and architecturally most influential, rotunda.
The Papal Basilica of Saint Peter in the Vatican, or simply St. Peter's Basilica, is a church of the Italian Renaissance located in Vatican City, an independent microstate enclaved within the city of Rome, Italy.
The Leaning Tower of Pisa, or simply the Tower of Pisa, is the campanile, or freestanding bell tower, of Pisa Cathedral. It is known for its nearly four-degree lean, the result of an unstable foundation. The tower is one of three structures in Pisa's Cathedral Square, which includes the cathedral and Pisa Baptistry.
Piazza San Marco, often known in English as St Mark's Square, is the principal public square of Venice, Italy, where it is generally known just as la Piazza. The Piazzetta is an extension of the Piazza towards San Marco basin in its southeast corner.
The Roman Forum, also known by its Latin name Forum Romanum, is a rectangular forum (plaza) surrounded by the ruins of several important ancient government buildings at the centre of the city of Rome.
Piazza del Duomo is located in Florence, Tuscany, Italy. It is one of the most visited places in Europe and the world and in Florence, the most visited area of the city. The Piazza del Duomo is part of the Historic Centre of Florence, which was inscribed as a UNESCO World Heritage Site in 1982.
Florence Cathedral, formally the Cathedral of Saint Mary of the Flower, is the cathedral of the Catholic Archdiocese of Florence in Florence, Italy.
The Galleria Vittorio Emanuele II is Italy's oldest active shopping arcade and a major landmark of Milan. Housed within a four-story double arcade in the centre of town, the Galleria is named after Victor Emmanuel II, the first king of the Kingdom of Italy.
The Uffizi Gallery is a prominent art museum adjacent to the Piazza della Signoria in the Historic Centre of Florence in the region of Tuscany, Italy.
The Sistine Chapel is a chapel in the Apostolic Palace, the pope's official residence in Vatican City. Originally known as the Cappella Magna, it takes its name from Pope Sixtus IV, who had it built between 1473 and 1481. Since that time, it has served as a place of both religious and functionary papal activity.
Villa Borghese is a landscape garden in Rome, containing a number of buildings, museums and attractions. It is the third-largest public park in Rome, after the ones of the Villa Doria Pamphili and Villa Ada.
Zoom Torino is a zoo and amusement park in Cumiana, near Turin, northern Italy, created in 2009. It covers 180,000 square metres (220,000 sq yd).
Photos from Wikimedia Commons, used under Creative Commons licenses. Individual credits shown on each photo where available.