One of Europe's most visually stunning cities, Barcelona balances the medieval intimacy of its Gothic Quarter with the grace and distinction of the wide boulevards in the Moderniste Eixample. It was the home of architect Antoni Gaudí, whose Sagrada Familia Cathedral, Park Güell and Casa Milà are the most profound statements of Modernisme. View the splendid works at the Picasso Museum and the Miro Foundation, or discover Barcelona's passionate ambiance at a flamenco show.

Livorno in Tuscany is a gateway to Florence and Pisa. From the 13th to 16th centuries, Renaissance freedom inspired Dante, Donatello, Michelangelo, Giotto, Botticelli, da Vinci, and Machiavelli. In Florence, see the Galleria dell'Accademia and Michelangelo's David, plus the Uffizi, Italy's famed art gallery. Visit Pisa's Campo dei Miracoli, Siena's medieval charm, and Lucca, where you can bike through the Tuscan countryside.

Rome offers endless choices: enjoy street performers at the Spanish Steps, wine and people-watching in colorful Trastevere, or the city's rich history and architecture. St. Peter's Basilica is a full-day visit, with the Sistine Chapel and panoramic views from the dome. Don't miss the Trevi Fountain, the Colosseum, and Aventine Hill, which overlooks the Imperial Palaces ruins and the Circus Maximus.

Spend a day exploring the fabulous ruins of ancient Pompeii and Herculaneum with their stunning temples, frescoes and mosaics. Explore fascinating Naples and its famed museums, visit charming Sorrento or take a boat trip to the beautiful Isle of Capri.

Malta's capital and major port, Valletta was inscribed as a UNESCO World Heritage Site in 1980. Highlights include the 19th-century Mosta Dome, San Anton Palace Gardens in Attard, Lija and Balzan, and the sea views from Dingli Cliffs. Valletta also makes a good base for day trips to Mdina, with St. John's Baroque Cathedral, and Rabat, once part of Roman Melita, with its archaeological sites.

Known as the "Pearl of the Adriatic," Dubrovnik was founded in the 7th century by a group of refugees from Epidaurum (today's Cavtat). It is known worldwide for its unique marble-paved squares, tall houses, steep-cobbled streets and fountains. The city walls, once used to as protection against its enemies, now keep motorists at bay in this picturesque town. UNESCO named the Old City a World Heritage Site, and Dubrovnik's beautiful historic sites have been restored to their former glory.

Split is the largest Croatian city on the Adriatic coast. It is famous for Diocletian's Palace, built as the Roman emperor's retirement home; its stone structure, grounds, and cellars are a major highlight. Other sights include the Cathedral of St. Duje, on the remains of an ancient shrine said to be the world's oldest, and the Mestrovic Gallery, featuring works by Croatian sculptor Ivan Mestrovic in his former home and atelier.

Koper charms with its marina, red-tiled roofs, seaside cafes, and old Venetian mansions from its days as a jewel of Venice's overseas empire. Around Titov Square, see the Praetorian Palace in Venetian Gothic style. Nearby excursions include the UNESCO-listed Škocjan Caves or a trip through the Slovenian countryside to Ljubljana, ending with a river cruise past picturesque historic buildings.

From Fusina, journey to Venice, where you'll witness the Grand Canal, lined with enchanting Renaissance architecture. Art lovers can visit the Peggy Guggenheim Collection or the Doge's Palace, a Gothic masterpiece. Savor Venetian cuisine at a traditional trattoria, sampling fresh local dishes. History enthusiasts can also peruse St Mark's Basilica, a marvelous 18th-century cathedral adorned with sculptures, mosaics and bas-reliefs representing Italian sophistication.