This stunning Belgian castle is set on 37 acres of private parkland, near the medieval city of Gent.

On the market for the second time in over 400 years, the property was recently upgraded in a decade-long restoration project, which includes the addition of an award-winning gin distillery, Newton House Gin, and a speakeasy in the converted stables.

Designed by architect Steven Gambrel and featured in Architectural Digest, the property was once the summer home of Chester A. Arthur, the 21st President of the United States (1881-1885).

In the 1920s, Mizner was the most-discussed living architect in America. He was hired in 1924 to transform the city of Boca Raton into "the foremost resort city on the North American continent…a resort as splendid in its entirety as Palm Beach is in spots."

Architect John Hunt of Northampton based the design on Buckingham House, which today forms the central portion of Buckingham Palace, the Queen's famous residence.

Nicknamed "Billionaire's Beach," the Carbon Beach section of Malibu is renowned for its oceanfront homes (built right on the sand) and unobstructed sea views (no sea walls here). The property belongs to billionaire Eli Broad, worth $6.8B.

The ivy-covered manor home comes with 44 acres of formal gardens and lush woodland, with direct access to the forests of the Château de Chantily, considered “one of the finest jewels in the crown of France's cultural heritage”.

It’s any billionaire’s dream pad, but there is more to the story behind one of the few privately-owned châteaux in Loire Valley.

It was named for the straight, flat section of road once a “fair mile” to test out a horse and carriage; later it became a notorious speed trap for the pioneer motorist, and today it is a part of the A307. The famous AA salute is said to originate here, not out of courtesy, but rather to warn drivers of hidden police patrol.

In 1994, the property was purchased by New York designer Joanne de Guardiola and her husband Roberto. This timeless Southampton property has remained essentially untouched since the turn of the century, and de Guardiola wanted the house to “retain its Golden Age magnificence” while updating it “in every way for a modern family”.