Ululalife

This is a Four Seasons, so you can expect seamless service and a lot of greige carpeting. However, this particular outpost is somewhat unique in that so many big names were tapped for its creation: floral designer Jeff Leatham, composer Brian Eno, architect Norman Foster, and chefs Jean-Georges Vongerichten and Greg Vernick. Their contributions along with expansive skyline views from every vantage point on the property and passionate, genuine service could make this the beginning of a transformation of Philadelphia's hotel scene.

This grand Louisville landmark was designed to impress when it opened in 1923, with its Georgian Revival facade, hand-painted coffered ceilings, mahogany furnishings, and Botticino limestone floors. (Befitting such pomp and circumstance, David Lloyd George, the former prime minister of the United Kingdom, was the first person to sign the guest register.) The 293 guest rooms and suites feature thoughtful touches, such as equestrian prints and racing-themed throw blankets. But to truly get a taste of Derby City, you’ll need to order a Hot Brown: The open-faced turkey sandwich, topped with bacon and Mornay sauce, debuted here in 1926.

The staff at this hotel in Belgravia near Hyde Park “go out of their way to do anything and everything to make your stay terrific”—all while wearing uniforms designed by Giorgio Armani. The weathered brick and Portland stone building has interiors colored to evoke the five elements. Rooms, reached via a corridor of black corrugated wood paneling, are mostly in shades of white with accents of brown and purple, and have Sapele hardwood veneers and Egyptian cotton linens. Nahm offers contemporary Thai cuisine like quail salad with sour-plum leaves.

Housed in an 18th-century mansion surrounded by lavender and cypress trees, this Relais & Chateaux property is a draw for both its proximity to Aix-en-Provence (it's a 15-minute walk to Cours Mirabeau) and countryside seclusion. The 23 rooms and suites have either a private garden of views of the sprawling grounds, and each one is outfitted in toile, cream, and crimson Louis XV furnishings. The outdoor pool is, of course, a highlight, as is the on-site wine cellar and spa. Head to the restaurant for a seasonal menu that pairs Provençale, French, and Mediterranean dishes with Bordeaux, Burgundy, and local wines—all served on the terrace during the summer.

Life isn’t perfect. That’s why we have places like Hotel du Cap-Eden-Roc, where the world’s most glamorous people descend every summer to live on what feels like an impeccably styled film set. The last day of my most recent stay here—the one I had reserved to spend entirely by its swimming pool, cut into rocks overlooking a glittering blue Mediterranean Sea—turned out to be gray and overcast. By this time, I had already experienced the other attractions: the rose garden, the tennis courts, the private cabanas where I enjoyed a massage, the restaurants that manage to feel casually chic in the day and all dressed up at night, and the Manolo Valdés exhibition on its perfectly manicured lawns, where pine trees are being carefully planted to eventually replace the imposing ones standing now. This is a place where nostalgia is kept alive, where corridors are filled with photographs of its most famous guests from the past 150 years, where golden sunshine infuses everyone and everything with an air of romance, so that your time here feels lengthened and expanded, and etched in memory no matter how short your visit actually is. You will leave so well taken care of, so well fed, so intoxicated by the heady, fragrant summer breeze that even a cold final day on the French Riviera will not taint your mood. Instead, it will seem like just a little twist in the plot, enough to make you believe that the rest of your life is pretty perfect after all. Doubles from $740. —Divia Thani

All things cozy and Austrian meet in this legendary inn, which first welcomed guests in the 15th century and now lists Prince Charles among its loyal fans. The hotel is in the heart of the medieval old town, surrounded by shops displaying wrought-iron guild signs. You can walk to pretty much anything, including Mozart’s birthplace, just down the street. Because driving can be a hassle—pedestrian-only areas, inscrutable road signs—you’re better off taking the train from Vienna or Munich. If it wasn’t so authentic, you’d swear a set designer had orchestrated the vaulted ceilings, antique farmers’ furniture, stag heads, and staff in lederhosen and dirndls.

Redeveloped by Skidmore, Owings & Merrill, Xintiandi is Shanghai’s car-free entertainment district, built in and around a series of 19th-century shikumen (or “stone gate”) houses. Perfectly fitting in with that old-meets-new vibe is this 357-room luxury hotel, which occupies a contemporary granite-and-glass tower inspired by Chinese latticework. Inside, at the Chuan Spa, personalized treatments incorporate the five elements of wuxing philosophy: wood, earth, water, fire, and metal. And the property is filled with other nods to traditional art and culture, including a recurring horse motif that draws on Han Dynasty imagery. Guests shouldn’t miss a meal at the Michelin-starred T’ang Court, where Cantonese dishes include roasted goose, drunken pigeon in rice wine, and bird’s nest soup with crab roe.

There is nothing that does not dazzle at the Santa Caterina, hewn from a cliffside off the staggeringly stunning Amalfi Coast—and even on looks alone, we’d have to agree. Terraces cleaved from natural rock formations and sprinkled with citrus groves and assorted gardens appear with astonishing regularity around every turn, ready to lend themselves to a quiet moment. The interiors are vaguely reminiscent of one of the island’s little Catholic churches—white walls, white linens, vaulted ceilings, gold-hued curtains, little baroque wooden chairs, and tiled floors decked out in primary colors—pretty angelic, really, and not a bad vibe to gravitate toward when you're seeking a peaceful stay away (you could also try the spa!). Some rooms feature ceramic accents and charming family heirlooms, and all bathrooms benefit from Bvlgari toiletries.