Nestled in a the beautiful Schanfigg Valley, Arosa is the very picture of an Alps village, from its diverse array of ski runs to the charming wooden houses that are so quintessentially Swiss. If you want, you can round out your ski vacation with concerts, architectural tours, and a visit to the 500-year-old Bergkirchli mountain chapel.

Lake Maggiore—one of the largest lakes in Italy—is known for its Alpine splendor, and the resort town of Stresa is a perfectly elegant place to admire its beauty. A quick trip from Milan, the town features opulent villas, pretty piazzas, and the storied Grand Hotel.

Lille is an architectural feast with strong Flemish influences from the Grand Place to the basilica of Notre Dame de la Treille to the quiet streets of row houses and gardens. For art buffs, Lille is home to the Musee d'Art Moderne and the Palais des Beaux Arts. Children will enjoy the Parc de Zoologique. Savvy travelers know that Lille has a fine public transit system, making this historical hotspot a pleasure to visit.

The small city of Sitges parties big. The nightlife is thumping, the people are gorgeous and the annual Carnival festival is utterly epic. A countercultural touchstone, Sitges is lively and very LGBT friendly. Native food and beverage is sublime—you simply must sample the Malvasia wine, made from grapes descending from Ancient Greece. Don’t miss the Museu Romàntic "Can Llopis" or, if you’re in Sitges in October, the world-renowned Sitges Film Festival, a cinematic extravaganza of horror, sci-fi and fantasy.

A spot of white in the turquoise waters of the Aegean Sea, the island of Naxos is a unique blend of ancient ruins and beach culture. The largest of the Cycladic Islands, Naxos is the childhood home of none other than Zeus, king of the gods. Upon arrival in Naxos, hike over a causeway to Palatia, where the Portara, a stone gateway to an ancient temple that no longer exists, stands alone, the symbol of the island. At sunset, the views of the island, and the sea beyond, are breathtaking.

The prophet Mohammed's birthplace is Islam's spiritual center and is strictly off-limits to non-Muslims. The pillars of Islam state that all Muslims with the means must undertake Hajj, a pilgrimage to Mecca, once in their lifetime. Those who visit the holy city are rewarded not just by proximity to landmarks and religious sites crucial to the religion, such as the Masjid Al Haram (Holy Mosque), the Mountain of Light, the Black Stone and the Well of Zamzam, but with the forgiveness of all their sins.

Walk the Freedom Trail the first time you visit Boston and you'll quickly get a sense of this coastal city's revolutionary spirit and history. But make sure you also explore some of Boston's fine museums (try the Isabella Stewart Gardner, featuring masterpieces displayed in their collector's mansion) and old neighborhoods (like the North End, Boston's Little Italy). You can't claim to have experienced real Boston culture, though, until you've watched a Red Sox game from the bleachers.

Conquering New York in one visit is impossible. Instead, hit the must-sees – the Empire State Building, the Statue of Liberty, Central Park, the Metropolitan Museum of Art – and then explore off the beaten path with visits to The Cloisters or one of the city’s libraries. Indulge in the bohemian shops of the West Village or the fine dining of the Upper West Side. The bustling marketplace inside of Grand Central Station gives you a literal taste of the best the city has to offer.