Get a behind-the-scenes look at how a grand Newport mansion transforms for the holidays on this live-streamed virtual tour!

The 18,000-square-foot mansion at 15 E. 63rd St., which once housed Jackie O's fashion designer's studio, comes with seven ...

The opulent mansions of the Gilded Age's wealthiest families once required exclusive invitations to visit. Today, many of them are museums open to the public. As a history buff and fan of HBO's ...

The reputation of the iconic New York City thoroughfare began with a competition to build lavish mansions that came crashing ...

This Beaux Arts gem—once the atelier of Oleg Cassini—boasts seven bedrooms, an envy-inspiring NYC location, and an equally ...

The Breakers, built 1895 as a summer estate by the Vanderbilt family, one of the famous Newport Mansions on Rhode Island. Tim Graham/Getty Images From the elegant HBO series "The Gilded Age" to the ...

The two-bedroom, two-bathroom condo in Logan Circle was once part of the Letcher Art Center, an art school for World War II veterans ...

Holidays at the Newport Mansions features Chateau-sur-Mer decorated and open for tours along with The Breakers, Marble House ...

The House of Cassini — an eight-story Gilded Age mansion on the Upper East Side that once housed the atelier of Jackie Kennedy’s favorite fashion designer, Oleg Cassini, in its atrium — has ...