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.

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.

Kotor is a coastal town in Montenegro, located in a most secluded part of the Gulf of Kotor. The old port, surrounded by an impressive city wall built by the House of Nemanjicc, is very well preserved and is a UNESCO World Heritage site. Numerous other attractions include the Cathedral of Saint Tryphon in the old town (built in 1166), and ancient walls which stretch directly above the city. Nightlife also attracts tourists to Kotor with pubs, taverns, cafes, and nightclubs.

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.

Set along Croatia's central Dalmatian coast, where the Krka River opens into the Adriatic, Sibenik will charm you as soon as your ship approaches the harbor. Founded by Slavs in the 11th century, it is widely regarded as the oldest native Croatian town on the Adriatic, its medieval core shaped by Venetian fortresses, narrow limestone lanes and sunlit squares. The city's rich maritime past endures in its UNESCO-listed Cathedral of St. James, weathered ramparts and waterfront promenade lined with fishing boats and cafés. More recently, Sibenik is often used as a filming location, most notably in the fantasy series, 'Game of Thrones'.

On the west coast of Istria, this fishing port rises from the Adriatic like a cluttered fortress, with tightly packed Venetian houses, cobbled streets, and the hilltop Church of St. Euphemia. Its egg-shaped Old Town offers boutiques, cafés, galleries, bistros, and restaurants with Italian food and local wines. Nearby, the Istrian hinterland has medieval hill villages, vineyards, olive groves, and truffles.

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.