Park City is a winter hot spot on multiple levels. Not only is the Wasatch Mountain destination home to a handful of highly ranked ski resorts, it’s also a celebrity stomping ground during January’s renowned Sundance Film Festival. (Mark your calendars: The 2008 festival runs Jan. 17–27.) Come nightfall, Main Street’s social mainstays give Park City its relative reputation as Utah’s “Sin City.”

Skiing reaches its peak at Whistler Blackcomb in Vancouver, Canada. Long touted as one of the top ski destinations in the world, it’s an all-inclusive destination that will keep you occupied from sunrise to … sunrise. The legendary slopes dovetail into bustling bars and restaurants, where cold beverages and hot music define the après-ski culture. The picturesque lodging villages—complete with twinkle-light-laden trees—are conveniently located steps away from the gondolas too.

If you're looking to swap holiday "fam" time with "glam" time, Miami is the place to be. During the day, the pristine beaches beckon and palm-tree-lined promenades lead to some of the most elite designer boutiques in the country. At night, you'll find good company with the gorgeous club revelers. Celebrity spottings are also plentiful here during winter, especially around New Year’s, when the stars come to party.

Craving warm weather? The desert will do you right. In Palm Springs temperatures can reach into the 70s, which is perfect for play at the myriad pools, golf courses, and high-end boutiques. The sunny vacation spot with a beautiful Southern California backdrop also boasts exceptional spas, restaurants, and galleries for those who wish to treat all their senses.

Escape from the cold weather and say aloha to celebrities' favorite domestic getaway with a visit to Hawaii. The islands serve up heartwarming staples (palm trees, temperate breezes, savory cuisine) and a plethora of perennial activities, like snorkeling, surfing, helicopter tours, dining, and dancing. Whale-watching is one of the season's greatest draws: The mammoth humpbacks migrate to Hawaii’s warmer waters to breed each winter. After sundown, tuck yourself into an oceanfront hotel room or a beachside bungalow and let the lapping waves lull you to sleep.

Dense evergreens, the snow-capped Sierra Nevada, gigantic topaz-hued Lake Tahoe, and quaint towns on its periphery make the region a gem for cold-weather recreation, R&R, and nighttime action. For a quintessential ski day, head to North Lake Tahoe's Squaw Valley, the onetime Olympic Games site, where skiing, snowboarding, ice skating, and snow tubing are white-hot. If nesting is more your speed, snuggle up inside one of the area's rustic cabins (with your hot beverage of choice in hand) and enjoy the snowfall. Or ski by day and heat up the night in South Lake Tahoe, where gambling, dancing, and carousing are as common as snowflakes.

A favorite of snow bunnies, athletes, and celebrity A-listers who snuggle up in their multimillion-dollar second homes, Aspen is a prime pick for both haute and cold winter activities. The historical integrity of the quaint and walkable downtown lends itself to Aspen's undisputable charm, yet one peek at the überupscale restaurants and boutiques within the old structures assures that the town's leisure life is anything but antiquated. At higher elevations, the Rocky Mountains offer phenomenal ski terrain; the popular (and family-friendly) Snowmass resort has more than 90 powdered trails.

For the ultimate spa getaway, point your plane fare toward Arizona. Winter temperatures average an inviting 70 degrees, which means your spa treatments, pool lounging, or golf games are likely to be accompanied by sunny skies. In Scottsdale, hit the links—and the massage tables—at the Boulders Resort, or find the ultimate in indulgence at the Fairmont Scottsdale Princess. In Paradise Valley, mingle with celebrities who flock to the secluded Sanctuary at Camelback Mountain for spa treatments and excellent dining. Or visit Tucson’s famous Canyon Ranch Spa and Miraval, both of which beckon with a focus on mental and spiritual well-being and world-class spa treatments.