I found a 1950s photo-book on CM's Fairy Castle when I was a kid (mad about miniatures of all sorts, influenced in part by my father's architectural practice).
I got the chance to see it at Chicago's Museum of Science and Industry about fifteen years later... I spent over an hour gawking, peering and sketching. She had buyers in Europe and New York on retainer to pick up anything related to miniatures, and hired famous jewelers of the day to create pieces of furniture and chandeliers...
If you ever get a chance to see it in person, make the time. It's pretty spectacular.