Once upon a time, my mother was a docent at Hearst Castle, and I was lucky to be able to tour it several times (in the late 80s).
Hearst Castle is a National Historic Landmark mansion located on the Central Coast of California, United States. It was designed by architect Julia Morganbetween 1919 and 1947 for newspaper magnate William Randolph Hearst, who died in 1951. In 1957, the Hearst Corporation donated the property to the state of California. Since that time it has been maintained as a state historic park where the estate, and its considerable collection of art and antiques, is open for public tours. Despite its location far from any urban center, the site attracts roughly one million visitors per year.