From the glittering palaces of Riyadh to 10 mansions on London's billionaires' row, this is one royal family with a staggering monopoly on the world's most expensive real estate.

This great-looking yacht from America's finest was one of the youngest models available at the time on the pre-loved yacht ...

This brand-new full-custom Italian masterpiece is the first of its kind to feature the Volvo Penta IPS Professional System and a unique tender launching system ...

Forbes contributors publish independent expert analyses and insights. Bill Springer would rather be on a superyacht. And he ...