The Astolat Dollhouse Castle is appraised at $8.5 million and has 29 rooms filled with 10,000 miniature pieces. The elaborate house is designed by Elaine Diehl and will be on display in all its splendor for the holiday season at the Time Warner Center in New York City. With exquisitely appointed marble flooring, gilded ceiling trim and a baby grand piano, the ballroom is perfect for entertaining.