Hearst Castle’s third floor consists of W. R. Hearst’s private space, in addition to some of his most treasured collections and sacred objects. Wander through the suite’s two bedrooms and private sitting room that he and Marion Davies occupied, after exploring the soaring and mysterious church-like Gothic Study where he worked.

This imposing library, intended for Mr. Hearst’s guests, houses more than 4,000 books, and also showcases one of the Castle’s most treasured collections: 150 ancient Greek vases, all more than two thousand years old. At 80 feet in length and filled with precious objects, the Library makes a grand statement.

Step into the richly decorated Doge’s Suite—which was inspired by the ornate chambers of Venice’s famed Doge’s Palace. Admire the magnificent painted antique ceiling, marble balcony and mountain views that welcomed guests here decades ago.

Located where you board the bus to return to the Visitor Center, the intensely decorated indoor Roman Pool is the perfect place to stop and relax. Modeled after ancient Roman baths, this meticulously detailed, majestic pool is tiled from ceiling to floor, and features marble copies of eight ancient Greek and Roman deities and athletes.

“La Cuesta Encantada”—Hearst’s Spanish name for The Enchanted Hill. Look for native plants, rare flowers and lush foliage that have been at the Castle since Mr. Hearst resided here.

The Theater is where W. R. Hearst and Hollywood film star Marion Davies joined guests every night to watch a full-length movie and newsreel. Today, as a guest of the Castle, you’ll be able to view historic Castle footage with moving images of Mr. Hearst and his guests.

The Billiard Room was a popular spot, where guests could relax and play both billiards and pool. This room is decorated with a variety of gaming themes, but it also boasts a 15th century Spanish ceiling painted with scenes of courtly life, in addition to a Flemish tapestry from 1500.

Mr. Hearst and architect Julia Morgan named the dining room after the word for a monastery’s dining hall. Its high windows, bright silk banners, and gleaming silver candlesticks convey the atmosphere of the Middle Ages, but the mustard and ketchup bottles show that Mr. Hearst liked to keep things informal at his ranch.

Gather in the grand social room on the ground floor of Casa Grande just as W. R. Hearst’s guests did decades ago for cocktails, conversation, and to meet their host. Admire the magnificent room’s walnut paneling,  Renaissance and Baroque tapestries and masterpieces of neoclassical sculpture.