Bishop's Palace, also known as Gresham's Castle, is an elaborate 19,082 square foot Victorian-style house located in Galveston, Texas. This three-story Châteauesque residence was built for attorney and legislator Walter Gresham between 1887 and 1892.

After earning his fortune in the shoe industry, Thomas Plant focused on building his country estate in Moultonborough, New Hampshire. Castle in the Clouds is an Arts and Crafts-style mansion perched atop a mountain overlooking Lake Winnipesaukee.

Now called Vizcaya Museum and Gardens, the estate was the dream of millionaire James Deering, heir of the International Harvester fortune. Construction began in 1914 and during its height, Deering hired 10% of Miami's workforce.

Glynallyn Castle was inspired by Compton Wynyates, a 16th-century Tudor country house in Warwickshire, England. Now a private residence, Glynallyn has been restored to reflect the castle it once was, with homage to keeping its original 100-year-old charm.

Nestled into the Gold Coast of Long Island, New York, Hempstead House served as a summer residence for the Guggenheim Family. This Tudor-style castle is a 50,000 square foot estate with a granite and Indiana limestone exterior.

Constructed in 1901, The Elms was the summer residence of Mr. and Mrs. Edward Julius Berwind. This Newport mansion was modeled after the mid-18th century French Chateau d'Asnieres (c.1750) outside Paris.

George Eastman, founder of the Eastman Kodak Company, purchased this Rochester, New York property in 1902. Following his death in 1932, Eastman left most of his estate to the University of Rochester. The property now serves as a museum.

Built for fourth-generation winemaker Dario Sattui, as the only authentically styled 13th-century Tuscan castle winery in America. Today, the medieval-style castle is one of the most popular wineries in Napa Valley.

Designed by painter Frederic Church, this ornate villa in Hudson, NY is known as the artist's living masterpiece. Today, Olana is a National Historic Landmark with a surrounding 250-acre landscape that visitors can enjoy daily.

Located on the campus of Manhattanville College in Purchase, NY, this renaissance revival structure was completed in 1892 as a private home for diplomat and owner of the New York Herald Tribune, Whitelaw Reid.

Built by industrialist John Pitcairn in 1895, the architecture of this gilded age gem blends inspiration from the French Renaissance with classical Greek and Roman influences.

Built as a 'summer cottage' for Cornelius Vanderbilt II, The Breakers sits on the coast of Newport, Rhode Island. This Italian Renaissance-style mansion offers a glimpse into the opulence of the Gilded Age.