Billionaire investors love fighting with each other over the markets, safely out of public view in sleek Greenwich or Manhattan offices. But a new political fight is pushing them into a high-profile debate over the future of energy consumption in the U …

Technology's richest can't seem to stay away from wacky desires — to live forever, to colonize other planets, to recreate the plot line of "Deep Impact," minus the apocalypse. Here's a quick tour of some of the most far-out pet projects of the tech …

SEATTLE — The Washington State Republican Party filed a complaint against a California billionaire earlier this week alleging illegal campaign finance contributions, but a spokeswoman for the Public Disclosure Commission said after reviewing that …

A report last week in The New York Times says that developers are turning 57th Street in Manhattan into “Billionaires' Row,” with apartments selling for north of $90 million each. And there's no shortage of billionaires. Forbes's list of the world's …

10 properties were put up for sale one of London's most exclusive, and expensive, streets by members of the Saudi Arabian royal family. The Evening Standard reports the huge homes in The Bishops Avenue in Hampstead were sold by an investment …

Those looking to go up in the world have a once-in-a-lifetime opportunity to live on London's “Billionaires' Row” — but only property hunters with the deepest of pockets should apply. The Saudi Arabian royal family is believed to have sold 10 …

Gongquan, 52, who made a fortune from real estate and investment management, is one of the first Chinese billionaires to cross a “red line” that forbids the ascendant entrepreneurial class from challenging the Communist party's supremacy. Advertise | …

Billionaires love buying media businesses and they've been doing it for decades but recent purchases are being viewed as philanthropic rather than vanity projects. The recent media venture by eBay founder Pierre Omidyar, and Jeff Bezos' Washington Post …

Private equity firm LJ Group has completed an audacious deal to buy a huge swathe of “Billionaires' Row” in north London from the Saudi Royal family for an ultra-high-end residential redevelopment. It has bought six adjoining plots on The Bishops …