Carolands, Marin Headlands

Carolands Chateau is a 46,050-square-foot, 4.5 floor, 98 room mansion on 5.83 acres in Hillsborough, California. An example of American Renaissance and Beaux-Arts design, the building is a California Historical Landmark and is listed on the National Register of Historic Places. Carolands is one of the last of the houses built during the Gilded Age, a period of great mansion-building that included famous houses of the Vanderbilt family, such as Marble House, Biltmore Estate and The Breakers, and stately California houses such as Filoli and the Huntington family's mansions. ()