Roman legions marched into what is now the Rhineland's largest city in 38 B.C. These two thousand years have produced a wealth of sites to visit, from Roman towers to Gothic churches to modern architecture. With a reputation as a fine art center, Cologne has museums running the gamut from the Museum of Applied Art to Museum Ludwig, home to works by Warhol and Picasso, to the Chocolate Museum. The city has an excellent bus, tram and train system, on which Kolner Tageskarte, Day Tickets, are valid.

Surrounded by country estates, Groningen pairs the old-world spirit of north Holland with the youthful energy of a university town. From the cafes of Grote Markt to the abstract architecture of Groninger Museum, the city is a hip mashup of contemporary Dutch culture.

At the center of Trois Vallees, the world’s largest ski area, Meribel gives easy access to the entire vicinity and its more than 400 miles of pistes. Within Meribel itself, the Altiport is for beginners while Saulire and Tougnète are mixed use, and Mont du Vallon serves up long, steep advanced runs against a gorgeous backdrop.

Brittany's dramatic 750-mile coastline traces a rugged hem against the chilly Atlantic. Attractions such as St-Malo's 1689 Fort National, the prehistoric ruins and striking beauty of Gavrinish Island and Brest's Oceanopolis aquarium cling to the rocky shoreline of France's most northwestern province. Nantes, Rennes and Brest are the largest cities. Rennes is just two hours from Paris by TGV. Breton and Gallo, the ancient languages of this Celtic province, are still spoken in pockets throughout the area.

You've probably heard that Guinness tastes better in Dublin (fresh from the factory), but what you may not know is that Dublin is a perfect destination for the whole family. No, we're not suggesting you let the kiddies drink a pint. Instead, take them to the Dublin Zoo, to feed the ducks in Stephen's Green or on a picnic in Phoenix Park. Scholars enjoy walking in the literary footsteps of such writers as Yeats and Joyce, while discerning shoppers have their pick of designer boutiques.

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.

Don your most comfortable shoes for Killarney, where town trails offer history lessons and country walks traverse Ireland's first national park: 26,000 acres of woodlands, sandstone mountains and low-lying lakes. In the town centre, Killarney House and Gardens provide a break for urban explorers. Renowned Muckross House, with its 15th-century abbey ruins and massive yew tree, is just outside the town. If your feet wear out, take in Killarney National Park's legendary scenery from a boat trip from Ross Castle.

If your kids are sick of the same old beach holiday you take every year, consider taking them to Lanzarote. There are great beaches, to be sure, but this UNESCO World Biosphere reserve has unique attractions and activities. We're talking camel rides on volcanoes (at Timanfaya National Park), or eating at a restaurant in a volcanic cave (at Jameos del Agua). Even the most jaded teens will be impressed.

Los Cristianos was a humble fishing village before it became known as a convalescent resort for Swedes. Now it’s a playground for beachgoers from all over Europe, thanks to sunny weather and plentiful hotel options. At night, you’ll find a lively bar scene.