The main city of the northern Tuscan Riviera area of Versilia, Viareggio began as a medieval fishing village, then later gained renown for its shipbuilding. In the mid-19th century, the town was developed as a seaside resort, which it’s been ever since. Today, the city is loved for its long beaches, pine woods, great shopping and lively nightlife. It’s also home to the famous carnival of Viareggio, dating back to the late 19th century and one of Europe’s most important carnival events.

One of the most popular resort towns on the Italian Riviera, little Portofino has just over 500 permanent residents. But that all changes on summer days when the sun is shining and the yachting set drops anchor in the harbor to wander about. Boutiques, art galleries, cafes and restaurants line the tiny streets. Diving, hiking and beach-going are popular local pastimes, and there are even some historic sights like the Church of St. Martin (Divo Martino) and the Castello Brown hilltop fortress.

travellers generally come to Bilbao to see the Guggenheim—some for the art inside, but many for the amazing building itself. The Fine Arts Museum and the Basque Museum may not have been designed by Frank Gehry, but are worth a visit, and you can catch international opera stars at the Palacio Euskalduna.

Plan to cross many bridges when in Cork. Ireland's third-largest city began life as an island and now spans both banks of the River Lee, with watery channels running beneath some of its main thoroughfares. The best way to experience this hilly southern seaport is on foot, following the signposted walking tour past St. Finn Barre's Cathedral and the riverside quadrangle of University College up the hill to red and white Shandon Church. Along the way, you'll meet plenty of the city's talkative residents.

With its prime vantage point atop multi-hued cliffs in Portugal's southern Algarve region, it's easy to imagine Albufeira's eighth- century Arab occupants calling the city "Castle of the Sea." Brightly painted fishing boats, stunningly white houses with Moorish flair and remnants of its old fortress provide echoes of earlier days, while lively nightlife accentuates its modern resort charms. Spend time sunbathing on the more than 20 diverse beaches that hug the coast or venture inland, where almond trees blossom and local handicrafts are abundant.