1. Bannerman Castle – Beacon, New York

Nestled on Pollepel Island in the heart of the Hudson River, Bannerman Castle is an iconic, albeit haunting, landmark. Originally constructed in the early 20th century by Scottish-American military surplus magnate Francis Bannerman, the castle was intended to store military equipment. Over the years, the structure has deteriorated, but its crumbling walls and towering remnants still evoke a sense of mystery. Accessible only by boat or kayak, the castle’s remote location amplifies its allure, offering a unique opportunity to explore an abandoned historical site surrounded by water and dense forest.
Visitors to Bannerman Castle can immerse themselves in its rich and mysterious history. The island, once bustling with military activity, now offers a glimpse into a forgotten era. Despite the ruins, the structure remains an intriguing destination for those seeking an off-the-beaten-path experience. As you walk through the decaying halls and explore the fortress-like walls, you can almost hear the whispers of a bygone time. The picturesque landscape surrounding the island, coupled with its eerie atmosphere, makes Bannerman Castle a must-visit for explorers and history enthusiasts alike.
2. Hearst Castle – San Simeon, California

Perched majestically atop the hills of San Simeon, Hearst Castle is a testament to American excess and opulence during the Gilded Age. Constructed by renowned architect Julia Morgan, the castle was commissioned by William Randolph Hearst, a newspaper magnate whose fortune funded the grand estate. The 165-room mansion is filled with European antiques, priceless artwork, and architectural marvels that echo the splendor of European palaces. Its ornate Neptune Pool and stunning views of the Pacific Ocean enhance the sense of grandeur, making Hearst Castle a captivating blend of history, art, and luxury.
As visitors walk through the castle’s lush grounds and stately rooms, they are transported to an era of sophistication and indulgence. The estate offers tours that highlight its impressive architecture, the history of Hearst’s empire, and the influence of Hollywood’s golden age. With sprawling gardens, lush terraces, and breathtaking panoramas, Hearst Castle is not just a building; it is an experience that immerses you in the extravagant lifestyle of its former owner. Whether you’re captivated by the art collections or the scenic views, Hearst Castle is a must-see for those fascinated by American history and European-style grandeur.
3. Gillette Castle – East Haddam, Connecticut

Overlooking the serene Connecticut River, Gillette Castle stands as a quirky and whimsical creation built by actor William Gillette, best known for his portrayal of Sherlock Holmes. Completed in 1919, the castle features an eclectic mix of architectural styles, blending elements of medieval fortresses and Arts and Crafts designs. What makes the castle truly unique, however, are the hidden doors, secret passageways, and meticulously designed wooden details that showcase Gillette’s eccentricity. Visitors will marvel at the intricate craftsmanship that went into every corner of the estate, making it a perfect destination for those with an appreciation for both history and creativity.
In addition to the fascinating structure itself, Gillette Castle offers stunning views of the river below. The surrounding grounds, once the actor’s private retreat, are now part of a state park, offering visitors a chance to enjoy nature while exploring the fascinating home. The castle’s combination of mystique and beauty draws countless visitors each year, making it a beloved landmark in Connecticut. For anyone interested in the intersection of art, architecture, and personal history, Gillette Castle is a captivating destination that feels both magical and timeless.
4. Loveland Castle (Chateau Laroche) – Loveland, Ohio

Loveland Castle, or Chateau Laroche, is a hidden gem nestled along the banks of the Little Miami River in Loveland, Ohio. Built stone by stone by World War I veteran Harry Andrews, this medieval-inspired structure stands as a testament to his determination and passion. Construction began in the 1920s, and though Andrews never completed the castle in his lifetime, his handiwork is evident in every inch of the building, from the hand-carved stonework to the intricate knights’ armor displayed throughout. The castle’s charm lies not only in its historical significance but also in its authenticity and dedication to the medieval style.
The castle offers a unique blend of history and personal story, as visitors can learn about the life of Harry Andrews and his dedication to creating a fortress that would stand as a tribute to the knights of old. Inside, visitors can explore its many rooms, including the armory and the grand hall, each brimming with medieval artifacts. The serene surroundings of the Little Miami River, combined with the castle’s detailed stonework and armor displays, make Loveland Castle an enchanting and authentic experience for history buffs and those in search of a bit of fantasy in the heart of Ohio.
5. Iolani Palace – Honolulu, Hawaii

Iolani Palace, located in downtown Honolulu, stands as the only royal palace on U.S. soil and is a significant symbol of Hawaiian heritage. This architectural marvel blends native Hawaiian and Victorian styles, reflecting the island’s royal past. Built in 1882, it served as the official residence of the Hawaiian monarchs until the overthrow of the Hawaiian Kingdom in 1893. The palace’s grandeur is evident in its beautifully restored rooms, where intricate woodwork and ornate chandeliers speak to a bygone era of royal luxury. A walk through Iolani Palace offers a glimpse into the lavish lives of Hawaiian royalty, steeped in history and culture.
Iolani Palace’s historical significance extends far beyond its architectural beauty. As the seat of the Hawaiian monarchy, it was the site of pivotal moments in Hawaiian history, including the imprisonment of Queen Liliuokalani after the overthrow of the monarchy. Today, visitors can explore the grand chambers, the royal throne room, and the exquisite palace grounds while learning about Hawaii’s complex and fascinating past. With its blend of regal beauty and historical importance, Iolani Palace remains an essential stop for those interested in Hawaiian history and culture, offering an unparalleled window into the kingdom’s royal legacy.
6. Bishop Castle – Rye, Colorado

Bishop Castle is a one-of-a-kind marvel located in the foothills of the Sangre de Cristo Mountains in Rye, Colorado. Built entirely by hand by Jim Bishop, this towering structure is a testament to his passion and determination. Starting in the 1960s, Bishop spent decades constructing the castle, incorporating whimsical ironwork, dramatic spires, and fantastic dragon sculptures that adorn the exterior. The result is a fantastical structure that seems to defy convention, with its towers reaching skyward and its intricate iron railings and gates adding a sense of wonder and fantasy. Visitors can explore the castle’s rooms, climb its turrets, and be enchanted by the castle’s eccentricity.
In addition to its imaginative design, Bishop Castle is a symbol of personal dedication and creativity. Jim Bishop worked on the structure almost single-handedly, using materials he sourced himself, often improvising and adapting to challenges as they arose. The castle’s unique blend of medieval fantasy, personal history, and sheer ambition makes it a fascinating place to visit. Whether you’re climbing to the top for breathtaking views or admiring the artwork that adorns the structure, Bishop Castle is a destination for adventurers and dreamers alike, where the spirit of creativity and determination is alive in every stone.
7. Castle in the Clouds – Moultonborough, New Hampshire

True to its name, Castle in the Clouds is perched high above Lake Winnipesaukee in the beautiful White Mountains of New Hampshire. This stunning Arts and Crafts-style mansion was built in 1914 by millionaire Thomas Plant as a private retreat. The estate includes 5,000 acres of pristine wilderness, with sweeping views of the surrounding mountains and the lake below. The castle itself features beautiful stonework, elegant interiors, and a variety of decorative arts that make it a unique blend of luxury and natural beauty. Visitors can tour the property and discover the history behind its construction, as well as its connection to the area’s rich industrial past.
Castle in the Clouds is not only a feast for the eyes but also a sanctuary for those seeking peace and tranquility in nature. The estate’s gardens are meticulously maintained, and the grounds include several hiking trails, waterfalls, and horse stables that add to its serene charm. Whether you’re enjoying a relaxing afternoon on the terrace or exploring the nearby trails, the combination of historical elegance and natural beauty makes Castle in the Clouds a must-visit destination. It’s a perfect escape from the hustle and bustle, where visitors can connect with both history and the great outdoors.
8. Biltmore Estate – Asheville, North Carolina

The Biltmore Estate, located in the Blue Ridge Mountains of North Carolina, is America’s largest privately owned home and a shining example of luxury and architectural grandeur. Built by George Washington Vanderbilt II in the late 19th century, the estate spans 8,000 acres and features a 250-room mansion designed in the French Renaissance style. The Biltmore’s opulence is evident in every room, from the stunning banquet hall to the exquisite libraries and drawing rooms. The estate also boasts some of the most beautiful gardens in the country, designed by the renowned landscape architect Frederick Law Olmsted. Visitors can explore the mansion, gardens, and extensive grounds, immersing themselves in a world of wealth and refinement.
The history of the Biltmore Estate is intertwined with the legacy of the Vanderbilt family, and a visit to the mansion offers a glimpse into the lives of one of America’s wealthiest families. The estate’s wine cellars, farm, and surrounding forests add to the sense of grandeur, making it an expansive and multifaceted destination. The Biltmore Estate is not just a mansion; it’s a full experience, where visitors can learn about the Vanderbilt family’s history, the mansion’s construction, and the estate’s continuing role as a center for culture and conservation. For those with an appreciation for architecture, history, and natural beauty, the Biltmore Estate is an unforgettable experience.
9. Boldt Castle – Alexandria Bay, New York

Located on Heart Island in the Thousand Islands region of the St. Lawrence River, Boldt Castle is a romantic and tragic symbol of love. Built by millionaire hotel magnate George C. Boldt for his wife, Louise, the castle’s grand design includes ornate towers, sprawling gardens, and luxurious interiors. Construction began in 1900 but was abruptly halted in 1904 after Louise’s sudden death. As a result, the castle remains unfinished, with its story forever tied to the heartache of Boldt’s loss. Today, the castle is a popular tourist attraction, drawing visitors from around the world who come to explore its romantic history and stunning architecture.
Boldt Castle offers visitors the chance to experience both its historical significance and its breathtaking surroundings. The island’s lush gardens, picturesque stonework, and sweeping river views make it a perfect location for exploration and reflection. A boat ride from Alexandria Bay to the island offers an unparalleled opportunity to take in the castle from all angles, and once on the island, visitors can tour its grand rooms, admire its architecture, and hear the story of its romantic origins. Boldt Castle is not only a monument to love but also a stunning architectural achievement in the heart of the Thousand Islands.
10. Hammond Castle – Gloucester, Massachusetts

Nestled on the rugged coast of Cape Ann in Gloucester, Massachusetts, Hammond Castle is a fascinating blend of medieval architecture and modern invention. Built in the 1920s by inventor John Hays Hammond Jr., the castle resembles a European fortress, complete with a drawbridge, secret passageways, and Gothic arches. Hammond, known for his work in radio and other technologies, constructed the castle as both a private residence and a showcase for his inventions. Today, visitors can tour the castle and explore its fascinating combination of history, architecture, and innovation, all while taking in stunning views of the Atlantic Ocean.
The castle’s secluded seaside location enhances its mystique, making it an ideal destination for those seeking both beauty and intrigue. Hammond Castle is a rare fusion of art and science, with many of Hammond’s inventions on display alongside his medieval-inspired design. Whether you’re exploring the grand hall, examining Hammond’s inventions, or simply enjoying the views from the castle’s terrace, Hammond Castle offers an enriching experience for history lovers, architecture enthusiasts, and those fascinated by the intersection of technology and design.
11. Scotty’s Castle – Death Valley, California

Scotty’s Castle, located in the heart of Death Valley National Park, is one of the most unusual and intriguing castles in the United States. Built in the 1920s by wealthy businessman Albert Mussey Johnson, the castle was designed in a Spanish Revival style and was intended to be a luxurious desert retreat. Its unusual location, surrounded by the harsh desert landscape, adds to the allure of the castle, which has been shrouded in mystery and legend. The story behind the castle involves a colorful character known as “Scotty,” a prospector who allegedly swindled Johnson into funding the construction of the castle. Today, visitors can tour the mansion and learn about its fascinating history, as well as the myths and stories that surround it.
The castle’s remote location in Death Valley enhances its mystique, offering visitors a unique opportunity to explore a historic structure in one of the hottest and driest places on Earth. The interior of the castle is filled with luxurious details, from its grand living spaces to its hand-painted ceilings and elaborate tile work. In addition to its architectural beauty, Scotty’s Castle offers visitors a glimpse into the history of the region, from the gold rush days to the development of this remarkable structure. Whether you’re a history buff or an adventurer, Scotty’s Castle provides a fascinating look at a desert oasis steeped in intrigue and legend.
12. Fonthill Castle – Doylestown, Pennsylvania

Fonthill Castle, located in Doylestown, Pennsylvania, is a masterpiece of imagination and craftsmanship, built by Henry Chapman Mercer between 1908 and 1912. Constructed from concrete, the castle is adorned with intricately handcrafted tiles, many of which were created by Mercer himself. The castle combines a mix of architectural styles, including Gothic, Medieval, and Byzantine, creating a unique and eclectic aesthetic. As visitors explore Fonthill, they are transported into a world where every room tells a story through its vibrant tilework and detailed craftsmanship. Mercer’s vision of creating a living museum comes to life within the castle’s walls, showcasing a stunning blend of art, architecture, and history.
Beyond its artistic significance, Fonthill Castle is an important part of Pennsylvania’s cultural heritage. The castle was designed to house Mercer’s extensive collection of antiques, artifacts, and tiles, and it remains a place of learning and inspiration today. The surrounding grounds also feature a museum dedicated to Mercer’s work, making it an enriching destination for those interested in early 20th-century American craftsmanship. Fonthill Castle offers visitors the opportunity to explore a truly unique structure, where every corner reveals a piece of history and artistry, making it a must-see for art lovers, history buffs, and architecture enthusiasts alike.