Once serving as the capital of the Ottoman and Byzantine Empires, Istanbul today offers impressive architecture, historic sites, dining, shopping, nightlife and exotic atmosphere. Spend time in the Old City to explore renowned places, like the Hagia Sophia, Blue Mosque and Topkapi Palace.

The Dardanelles, one of the world's most historically significant waterways, have seen countless civilizations. Visit Troy, where Homer's Iliad comes alive among ancient ruins, see the imposing Çanakkale Fortress overlooking the strait, and enjoy authentic Turkish cuisine-savory kebabs and sweet baklava.

Europe's classical metropolis, Ephesus, was one of the largest cities in all of the Roman Empire, boasting one of the Seven Wonders of the Ancient World, the Temple of Artemis. Explore the ruins of its massive Theater, the Temple of Hadrian and the magnificent Celsus Library.

Piraeus is the gateway to Athens, the "Cradle of Western Civilization," famed for its lasting cultural and political influence. Driven by tourism and the 2004 Olympics, Greece has redeveloped many sites. Athens remains a historian's delight, with the Acropolis, Parthenon, Plaka's winding streets, the Temple of Olympian Zeus, the Temple of Athena Nike, and the Archaeological Museum's renowned ancient artifacts.

Messina, Sicily's third-largest city, was a key medieval port for knights heading to the Crusades. Though extensively rebuilt, it still has major landmarks, especially the cathedral with its unusual astronomical clock, the 12th-century Catania Church, and the ornate Teatro Vittorio Emanuele. It's also a starting point for day trips to Mt. Etna's Crateri Silvestri.

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.

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.

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.

Explore bustling Toulon with naval ships, yachts, and colorful fishing boats. Ride the cable car to Mount Faron for sweeping views of Toulon and its turquoise harbor. Learn its maritime history at the Musée de la Marine and the Allied landing at the Musée Mémorial du Débarquement. Wander Old Town's markets, fountains, cathedral, cafés, and boutiques. Shop for designer fashions, jewelry, perfumes, and Provençal gifts like herbs de Provence, lavender, olive oil, and ceramics.

Experience Costa Brava and understand why Salvador Dalí and others have long been inspired by its beaches and coves. Spend a day in the warm sand of La Fosca or learning about the history of this fishing village in Museu de la Pesca or simply taking in the Mediterranean air while walking down the promenade. Just an hour north of the city, you can visit the extraordinary Dalí Theatre-Museum in Figueres. The museum holds works done from his adolescence to the last years of his life.

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.