A contemporary mansion that’s never been lived in is back up for sale in the lavish Los Angeles neighborhood of Bel-Air, ...

The 16,000-square-foot mansion built during the Gilded Age on New York's luxe Fifth Avenue is on the market for $49.9 million ...

A historic San Francisco mansion — owned by a venture capitalist ... “There are few blocks in Presidio Heights with such coveted status and global provenance,” the official property listing ...