Long flights and jam-packed days of sightseeing in a large city like Los Angeles can leave travelers feeling beaten down and weary. To help you find the perfect place to rejuvenate, U.S. News consulted a number of Los Angeles experts. Here are seven spas they say are great for unwinding and relaxing.Spa at the Beverly WilshireNot surprisingly, the Beverly Wilshire, Beverly Hills' head concierge, Jeanne Mills, recommends her hotel's spa."We rarely recommend anything outside the hotel because it's one of the best in the city," Mills says. "Our therapists and aestheticians are incredibly tenured and experienced, so guests remain very loyal to them." [Read: The Best Los Angeles Tours.]Mills recommends spending some time in the aromatherapy steam room, which features ceiling lights that give guests the feeling of sitting outside, under the stars. "They haven't missed a single detail with the lighting," she says. The spa visitors who aren't staying at the hotel also have access to the pool area. "It's designed as a replica of Sophia Loren's Tuscan villa pool," Mills adds.The spa is open daily from 8 a.m. to 8 p.m.AlchemieLocated in Santa Monica, this spa specializes in massage therapy and facials, with an emphasis on organic and local treatment items. "It's a holistic spa with a balance of crunchy aspects of massage with a modern, design-driven aesthetic," explains Casey Duggan, head concierge at the Viceroy Santa Monica, who notes that Alchemie is his favorite spa in Los Angeles. "It balances New World and Old World ideology." Alchemie welcomes weary guests from 10:30 a.m. to 8 p.m. daily.Wi SpaLooking for a relaxing afternoon that doesn't require dropping so much cash? The affordable day pass from Koreatown's Wi Spa is a hit with Angelenos and visitors alike. Wi Spa is a best-in-class Korean spa, with hot and cold plunge tubs, sauna rooms and spa areas that are separated by gender. There's also a coed area with space to read, relax and eat Korean food.[Read: 8 Parks to Visit in Los Angeles.]"I'm a huge fan of Korean day spas," says Sarah Dandashy, head concierge at The London West Hollywood and host of AskAConcierge.tv. "You've got so many fun rooms to go in, like the salt room, Jacuzzi room, sauna or steam room. And you can get great scrubs. Plus, they're really cost-effective."Irene Chen, concierge at The Ritz-Carlton, Los Angeles in downtown, agrees. "It's a good one – I'll send anyone there," she says. "You're not as catered to, but it's nice. And you can stay there all day, if you want to." The Ritz-Carlton SpaChen also recommends her hotel's own spa to travelers seeking pampering. Featuring sleek, white-on-white decor, the spa welcomes guests with a glass of champagne – a touch that helps people feel right at home, even if they've just stepped off a jet bridge, she says. "It's a very tranquil spa in a very quiet place," Chen says. "It's got reclined, cushioned chairs; lovely water; snacks to munch on. You can read a magazine, fall asleep in your bathrobe and slippers – whatever you want." The spa also offers seasonal specials. It's open daily from 9 a.m. to 8 p.m.Beverly Hot Springs"It's just what it sounds like, but in Koreatown," Duggan says. Hot springs in Southern California start deep underground, where the region's fault lines produce pockets of ultra-heated ground water, which a well or simply pressure under the earth pushes to the surface. Beverly Hot Springs says it's the only natural hot springs in Los Angeles, allowing guests to submerge themselves in the Earth's mineral-rich water. Massage, skin care and body treatments are also available.Beverly Hot Springs is open daily from 9 a.m. to 9 p.m.Olympic SpaAnother great option in Koreatown is the Olympic Spa. Jessica Berger, concierge of the Four Seasons Hotel Los Angeles at Beverly Hills, is not shy about sending female clients to this women-only spa, though she makes sure they know the experience may not be what they're used to."You have to understand that everyone is naked, so it's not exactly modest," Berger explains. "But you can get incredible body scrubs that take all the dead skin off your body, in an hour treatment from head to toe. It's a very thorough scrub."Olympic Spa is open every day from 9 a.m. to 10 p.m.[Read: 12 Best Relaxing Getaways in the USA.]Thai ClassicIf your muscles are seriously stressed, make your way to Hollywood's Thai Town to Thai Classic. "It's my favorite place, hands down," Dandashy says. "You can get a $45 massage for an hour, and they really know what they're doing. It's fantastic. In terms of massages, sometimes if you go off the beaten path, you'll be pleasantly surprised."Thai Classic also offers deep tissue and Swedish massages, as well as reflexology. Treatments are available every day from 9 a.m. to 9 p.m.To experience more of what Los Angeles has to offer, check out the U.S. News Travel guide.