Value: $155 million
Details: The largest property in the Yellowstone Club, a private ski and golf community for the mega-rich, the house has heated floors, multiple pools, a gym, a wine cellar, and even its own ski lift.
Owners: Edra and Tim Blixseth—Real estate developer and timber baron Tim Blixseth cofounded the Yellowstone Club, but the club’s bankruptcy, a divorce, and other troubles have seriously reduced his wealth in recent years.
Details: The 27-bedroom castle, used in the movie The Godfather, has hosted John and Jackie Kennedy, Clark Gable, Winston Churchill, and other famous figures.
Owners: William Randolph Hearst’s trustees—The castle, built by the country’s first newspaper magnate, is now a heritage and tourist site and part of the California Park System.