Capri is part of the Western edge of a wide Bahamian-type Mesozoic carbonate platform known as the Campania-Lucania platform which extends from the Lepini Mountains in the Lazio region of Italy, to the Massif of the Calabrian Pollino Nature Reserve. The position of the exposed earth has changed considerably with the passing of time and it is thought that the present conformation was established approximately 40-50 million years ago during the Eocene.

According to the theory of continental drift, all islands were originally part of a single block with much of the land now visible once being under the level of the water. Carbonate platforms would have been present at the level of the surface of the water, including the Campania-Lucania which was involved in the formation of the island of Capri.
Naples is famous for its historic castles: the ancient Castel Nuovo is one of the most notable architectural representatives on the city, also known as Maschio Angioino, it was built during the time of Charles I the first ever king of Naples. Castel Nuovo has hosted some historical religious events, for example in 1294 Pope Celestine V resigned as pope in a hall of the castle, following this Pope Boniface VIII was elected pope here by the cardinal collegium and immediately moved to Rome.

The castle which Nuovo replaced in importance was the Norman founded Castel dell'Ovo, it's name means Egg Castle and it is built on the tiny islet Megarides where the Cumae colonists founded the city. The third most noted castle is Sant'Elmo which was completed in 1329 and is built in the shape of a star. During the uprising of Masaniello the Spanish took refuge in Sant'Elmo to escape revolutionaries.

The central and main open city square or piazza of the city is the Piazza del Plebiscito. It was started by Bonapartist king Joachim Murat and finished by Bourbon king Ferdinand IV. It is bounded on the east by the Royal Palace and on the west by the church of San Francesco di Paola with the colonnades extending to both sides. Nearby is the Teatro di San Carlo, which is the oldest and largest opera house on the Italian peninsula. Directly across from San Carlo is Galleria Umberto, a shopping centre and active centre of Neapolitan social life in general.
Pompeii
Time travel is possible, simply by taking a short train ride from Naples. The ruins of Pompeii, unearthed in the mid-18th century, contain 2,000-year-old temples, villas and artworks buried when volcanic Mount Vesuvius blew its stack in 79 A.D. Explore the elegant House of the Vettii, the rich frescoes of the House of the Mysteries and ancient thermal baths. After immersing yourself in history, head for the modern city of Pompei (its neighbor with only one "i") to dine on tantalizing regional dishes.
Venice
Venice makes you a believer in fairy tales. Cars are banned, so the only way to get around the 1,500-year-old city is by foot or by water. From these vantage points, you'll be awed by the magical beauty. La Serenissima, "the most serene one," is filled with palaces and art, fine shopping and excellent food. Relax in Piazza San Marco, visit the basilicas, drink a bellini at Harry's Bar and wander the alleyways and bridges. Consider an off-season trip to have more of the city to yourself.
Tuscany
One of the most popular regions in Italy, Tuscany stretches from the Tyrrhenian Sea to the Apennines. Its main cities include Florence, Pisa, Siena, Lucca, Arezzo and Livorno. Drive between stunning sites like Florence's cathedral and Uffizi Gallery and the Leaning Tower of Pisa. Or join a bike tour and pedal past sun-baked olive groves and vineyards. Don't miss the towers of San Gimignano or serene northern hill towns. For a more modern take, hit one of Florence's hip clubs, such as Space Electronic.
Rome
"When in Rome, do as the Romans." That classic advice leads to a wealth of options: Should you follow Augustus and Caesar, whose Rome is filled with spectacular ancient structures? Or Michelangelo and Da Vinci, whose city invites artistic pilgrimage? Maybe you'll discover the Rome that enchants lovers and sightseers alike? Rome encompasses all this and more. Explore the seven hills, stop for an espresso by the Spanish Steps, sip a Chianti in a hidden piazza. The many charms of Rome await.