14 Most Beautiful Castles in the United States

High on a hilltop overlooking San Simeon, California, Hearst Castle was built between 1919 and 1947 – according to designs by noted architect Julia Morgan – for newspaper tycoon William Randolph Hearst. He nicknamed the estate La Cuesta Encantada (the Enchanted Hill), and it comprises four buildings, 165 rooms and 127 acres (51ha) of terraced gardens. The Casa del Mar guesthouse has panoramic views of the Pacific Ocean, while the gothic study in the main building of Hearst Castle features a vaulted Spanish ceiling dating back to the 14th century.

In the Blue Ridge Mountains outside Asheville, North Carolina, the Biltmore Estate took six years to build, beginning in 1889 after George Vanderbilt visited the area and became enchanted by its beauty. Architect Richard Morris Hunt designed the 250-room French Renaissance château, while acclaimed landscape architect Frederick Law Olmsted envisioned the grounds surrounding the castle, including the 15-acre (6ha) Azalea Garden, home to some of the finest native azaleas in the nation. Today, the estate has a vineyard and winery, producing award-winning wines, and offers tours of the château, including the stately banquet hall and bowling alley.

This Rhineland-inspired castle is on a tiny isle in the Thousand Islands region in Upstate New York, which was a playground for the rich and famous in its day. Hotel magnate George C Boldt began building the castle in 1900 for him and his beloved wife, Louise, to enjoy as a summer home. Sadly, Louise died months before Boldt Castle was completed, and a devastated George abruptly halted its construction. The castle sat unoccupied at the mercy of the elements for more than 70 years until the Thousand Islands Bridge Authority acquired it and restored it to its current glory. The island estate includes the 120-room castle, a drawbridge and the pretty Alster Tower. The authority runs tours of the castle and Heart Island, which it occupies.

Another Vanderbilt family creation designed by architect Richard Morris Hunt, the Breakers is one of the most striking summer homes in Newport, built in the late 19th century when the picturesque Rhode Island coastal town was the playground for the wealthiest families in America. Taking inspiration from the Italian Renaissance palaces of 16th-century Genoa and Turin, Hunt designed the 70-room mansion to include the grand dining room, with its dramatic freestanding columns and gilded cornice, and drafted contemporary talents such as Austrian-American sculptor Karl Bitter to create relief sculptures. It’s open to visitors year-round and is owned and operated by the Preservation Society of Newport County.

Also known as Gresham’s House, the 1892 Bishop’s Palace is in the East End Historic District in Galveston. It was built in the late 19th century for attorney and entrepreneur Walter Gresham and his family. Frequently cited by architectural historians as one of the most significant structures in the USA, the 1892 Bishop’s Palace was designed by famed local architect Nicholas J Clayton, who built the Victorian-style mansion from steel and stone – a sturdy mixture that endured the Great Galveston hurricane that destroyed much of the city. The mansion’s opulent interior features a dramatic mahogany stairwell, many stained-glass windows and decorative wood carvings. You can look around yourself or see areas usually closed to the public with a basement-to-attic tour.

In the northern reaches of Napa Valley, California, Castello di Amorosa can be deceiving, like many castles in the US; while it looks like a 13th-century castle straight out of Tuscany, it actually opened its doors in 2007 after a 15-year construction period. Designed by owner and fourth-generation winemaker Dario Sattui as a winery, the castle is surrounded by acres of vineyards producing award-winning Italian-style wines. Featuring 107 rooms, most of which are used for winemaking, it includes a drawbridge, a great hall with replica Italian frescoes, and even a dungeon and torture chamber.

Iolani Palace, the only official royal residence on US soil, was built in 1882 in downtown Honolulu by King Kalakaua to strengthen the former Kingdom of Hawaii’s prestige as a modern nation overseas. When the US overthrew the Hawaiian monarchy in 1893, the palace served as the capitol building until it underwent extensive renovation and reopened as a museum in 1978. Inspired by European palaces, it’s said to be the only example of American Florentine architecture – a mixture of Italian Renaissance and native Hawaiian architectural styles. It’s seen as a cultural center in Hawaii, and specialty tours are available, including a White Glove Tour looking at treasures from the staterooms to the palace attic.