Long the home of Portugal’s monarchs, Sintra is a magnificent town of marvelous historic mansions, all set against the backdrop of lush hills. Sintra’s many castles include the Palácio Nacional de Sintra (a main abode of Portuguese royalty until the early 20th century), the hilltop and storybook Palácio da Pena, Quinta de Regaleira (incorporating several architectural styles and with gorgeous surrounding gardens), the Castelo dos Mouros (Moorish Castle), and the Palácio de Monserrate.

A coastal town just 20 miles west of Lisbon, Cascais was once a small fishing village, but its idyllic scenery attracted the attention of artists, writers and expelled European nobility in the 20th century. Today, it still attracts high society, but all society comes in force to enjoy the gorgeous beaches and adventure options like sailing and surfing. The Conde de Castro Guimarães Museum, a former palace, is now open to the public and displays an impressive collection of art and artifacts.

Lovely as it is, this little country town of less than 8,000 about 75 miles north of Lisbon wouldn’t be on the radar if it weren’t for its most famous citizens: the three shepherd children who, in 1917, saw monthly visions of the Virgin Mary in the Cova da Iria pasture. Today, the site is marked by the Basílica de Fátima, where pilgrims come on the 13th of every month to honor the Virgin and her young visionaries, especially in May and October, when the apparitions originally began and ended.

From Shoreditch’s swaggering style to Camden’s punky vibe and chic Portobello Road, London is many worlds in one. The city’s energy means that no two days are the same. Explore royal or historic sites, tick off landmarks from your bucket list, eat and drink in exclusive Michelin-starred restaurants, enjoy a pint in a traditional pub, or get lost down winding cobbled streets and see what you stumble across – when it comes to London, the possibilities are endless.

Rome wasn't built in a day--and you'll need much more than a day to take in this timeless city. The city is a real-life collage of piazzas, open-air markets, and astonishing historic sites. Toss a coin into the Trevi Fountain, contemplate the Colosseum and the Pantheon, and sample a perfect espresso or gelato before spending an afternoon shopping at the Campo de’Fiori or Via Veneto. Enjoy some of the most memorable meals of your life here, too, from fresh pasta to succulent fried artichokes or a tender oxtail stew.

Once known for smog, traffic and tacky architecture, Athens is a city reformed thanks to fortunes brought by the 2004 Summer Olympics. Spotless parks and streets, an ultra-modern subway, new freeways, an accessible airport and all signs in perfect English make the city easily negotiable. Meriting more than a stopover en route to the islands, sophisticated Athens sites include many pillars of Western history, from the Acropolis to the Temple of Olympian Zeus, as well as treasures in the National Archaeological Museum.

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.

Historic Charleston is bursting with Southern charm and hospitality. The city feels a bit like it’s suspended in time, thanks to its antebellum architecture and surrounding plantation landscapes. Take in incredible views of the Battery and the French Quarter as you stroll the Waterfront Park, then become inspired by the cultivated beauty of the gardens at Middleton Place. At night, try a ghost tour for an introduction to the spooky side of the city.

The windy city is a cornucopia of modern art, fine dining, cutting edge comedy, and die-hard sports fans. Snap a photo of your reflection in the silver Cloud Gate sculpture at Millennium Park before heading to Grant Park to get hit with the refreshing spray of Buckingham Fountain. There are dozens of museums and theater companies in Chicago, so a cultural experience is never hard to find. You’re sure to laugh your head off at the Second City Theater, the professional launch pad of many famous comedians.

Aruba is the quintessential Caribbean island, all sun and sea and stretches of powdery white sand. Time will slow to a pleasant crawl as you linger over a tropical cocktail or flutter serenely underwater, where only the parrotfish are in a hurry. The pastel façades of Oranjestad landmarks and shops lend an inviting and playful vibe to the capital city. Enjoy the shade of an Eagle Beach divi tree while the crashing waves of turquoise water create a soothing soundtrack just for you.

At the shore in Miami Beach, visitors can swim, surf and jet ski in the warm and crystal-clear Atlantic waters. You can also nap on the white sands, work on a tan or simply watch the beautiful people, especially at South Beach, a favorite of models and celebrities.

With live music to be heard all across town, 24/7, 365 days a year, Music City lives up to its name. From honky-tonk bands jamming at Tootsie’s Orchid Lounge to songwriters in the round at the Bluebird Cafe and country music legends rocking the Grand Ole Opry, you never know who you might see. The creative spirit from Nashville's music landscape flows into the area's myriad art galleries, up-and-coming fashion scene, historic landmarks and chef-driven restaurants.

New Orleans is full of life—but with a laid-back energy that sets it apart from other cities. You’ll wanna soak it all in: impromptu jazz performances up and down Frenchmen Street, the ding of the St. Charles Streetcar, moss-draped trees in the famous Garden District…even its gothic, above-ground cemeteries. (The city’s said to be one of the most haunted in America.) For some, NOLA will always be all about Bourbon Street, but for travelers looking to take it slow, the city’s distinct blend of cultures—including Creole and Cajun—means there’s tons to see, explore, and yes, eat.