Television producer Burt Sugarman, who produced “The Richard Pryor Show,” and his wife, television personality and former “Entertainment Tonight” host Mary Hart, have put their 160-acre ranch in Big Sky, Mont., on the market for $26.5 million.

The ranch sits inside the Yellowstone Club, a 13,600-acre private golf and ski community that lies about 20 miles north of Yellowstone National Park. Possibly the world’s only members-only ski resort, with 15 lifts and three lodges, the Club has roughly 400 members and in the past has counted among them NBCUniversal Chief Executive Steve Burke, former Los Angeles Dodgers owner Frank McCourt, Starwood Capital Group Chief Executive Barry Sternlicht and Bill Gates.

The Yellowstone Club was started in the late 1990s by timber baron Tim Blixseth and his wife, Edra. They divorced, and the club went bankrupt in 2008. Sam Byrne’s buyout firm, CrossHarbor Capital Partners, purchased the resort out of bankruptcy. Since taking over, Mr. Byrne has made improvements and added new members, including Justin Timberlake and Google Chairman Eric Schmidt.

Called Elk Horn Ranch, Mr. Sugarman and Ms. Hart’s property has a 7,000-square-foot main home with six bedrooms and seven bathrooms. There’s a detached garage with a one-bedroom apartment in addition to a hand-hewn one-room log cabin. There’s also a four-stall horse barn with a fully decorated rec room and kitchen upstairs.

There are only six parcels of this size in the Yellowstone Club. And the placement of Elk Horn Ranch within the Yellowstone Club is also unique, says listing broker Tim Murphy of Hall & Hall, because it is one of the few parcels in community that has direct access to the national forest, which leads into Yellowstone National Park.

Mr. Murphy says that Mr. Sugarman and Ms. Hart are selling the ranch because they already own another property within the Yellowstone Club.

A 7,200-square-foot penthouse in New York’s TriBeCa neighborhood has listed for $42 million.

The four-bedroom, five-bathroom apartment sits atop 250 West St., a 12-story condominium development by El Ad Group where sales launched in 2011. The penthouse, one of three condos left for sale in the 106-unit building, was held off the market until this month.

On three of its sides, the 12th-floor penthouse has floor-to-ceiling sliding glass panels that open onto a 4,350-square-foot wraparound terrace. The unit has protected views of the Hudson River, the Statue of Liberty and the Empire State Building.

The private terrace has a Jacuzzi, an outdoor kitchen and barbecue, as well a children’s play area. The penthouse has a private entry through wrought-iron gates and a private lobby, which has room for a car as well as staff and personal security. From there, a private elevator rises into the penthouse.

The penthouse also comes with all the amenities available to residents at 250 West St., including a doorman, a library, a 61-foot-long indoor pool, a sauna, a fitness center and a children’s playroom. There’s also an interior courtyard and a 5,000-square-foot landscaped rooftop with a separate sun deck lounge. “It’s like having a private mansion in Manhattan, with all the advantages and amenities of an apartment building,” says Richard Cantor, principal of Cantor & Pecorella, the sales and marketing firm for 250 West St.

Condo sales in TriBeCa and adjacent SoHo have gone up, with the average sales price rising by 17.5% in the past year to $3.08 million in 2012 from $2.62 million in 2011, according to real-estate appraiser Jonathan Miller.