Built at the turn of the 20th century for James E. Nichols and designed by C.P.H. Gilbert, 4 East 79th Street has lived several lives: private Gilded Age mansion, crime scene, diplomatic address, subdivided residence, and ultimately a painstakingly reconstructed single-family home.

Just above the Arctic Circle, on Norway’s Lofoten Islands, this white 1950 farmhouse sits between wildflower meadows, steep mountains, fjords and white-sand beaches.

Brechin Castle has stood on Scotland’s east coast for more than 700 years, shaped by kings, war, rebellion and generations of aristocratic families. Its grounds include one of Scotland’s most remarkable private gardens.

Westerly Estate’s story stretches from Fletcher Jones’s 4,000-acre thoroughbred empire to one of the pioneering vineyards that helped shape Happy Canyon wine country.

The private island offers 1,110 acres of Scottish wilderness—and a castle to restore, built by an Antarctic explorer whose architect is believed to have sank with the Titanic.

Built in 1702, this historic villa for sale near Milan sits on 25 acres with formal Italian gardens, a 19th-century English park, and a remarkable hidden Secret Garden.

A seven-story Beaux-Arts mansion — once home to a Russian prince and later restored from a shell — has come to market at $29.75 million.

Built and once owned by a notable Belle Époque architect, this villa sits directly on the Mediterranean at Cap d’Antibes, the wooded peninsula between Cannes and Nice and one of the French Riviera’s most tightly held residential enclaves.

On the market for the first time in over 200 years, Lake Delaware Farm dates to 1787, when Gertrude Livingston and Revolutionary War general Morgan Lewis built it while the Catskills were still largely untamed, densely forested, and home to Native American tribes.

Overlooking Mallorca’s Serra de Tramuntana, Finca Sonrisa is a design-led finca reimagined by AD100-listed Munich studio Holzrausch, with interiors recognized by Architectural Digest and Wallpaper*.