Naumkeag is the former Berkshire estate of New York City lawyer and U.S. Ambassador to Great Britain, Joseph Hodges Choate, and his wife Caroline, located in Stockbridge, Massachusettes. The Choate’s, who were part of the newly-rich, traveled in well-to-do social circles. They decided to build a 44-room shingle-style “cottage” with brick and stone details, designed by the architect of the day, Stanford White.

Olana was the eclectic home of Frederic Edwin Church and his wife Isabel. Frederic was one of the major figures in the Hudson River School of landscape painting. The mansion was designed by Mr. Church in conjunction with architect Calvert Vaux and built between 1870 and 1872. A studio wing was added in 1889.

Blithewold is a 33-acre seaside garden estate that once the Bristol, Rhode Island summer home of Augustus and Bessie Van Wickle.

Charles Deering was an American businessman and philanthropist. He was the son of William Deering, founder of Deering Harvester McCormick-International Harvester Company

The Edison and Ford properties are both on the National Register of Historic Sites and consist of 20 acres of historical buildings and gardens including the 1928 Edison Botanical Research Laboratory.

The Martin House was a Frank Lloyd Wright design built between 1903 and 1905 for Buffalo businessman Darwin Martin and his family.

The beautiful former estate of the world-respected innovator, George Eastman, houses two museums, the inventor’s 50-room fireproof home

iMajor and Mrs. James H. Dooley transformed rough fields and pastures into a showplace many American millionaires were creating during the Gilded Age.

The Federal-style mansion in the Georgetown neighborhood of Washington D.C. was originally the home of Martha Washington’s grandaughter Martha Parke Custis Peter and her husband, Thomas.

Marjorie Merriweather Post was a pioneering business executive, engaged citizen, generous philanthropist, distinguished collector and amazing party hostess.

The Cairnwood Mansion is an L-shaped, Beau Arts gem designed by Carrere and Hastings nestled in the serene countryside. The 26,000 square-foot, 28-room mansion was built in 1895 for John Pitcairn, Jr,

The mansion that houses the Nassau Country Museum of Art, in Roslyn Harbor, was originally built by Lloyd Stephens Bryce utilizing the Neo-Georgian designs of architect Ogden Codman.

James Deering, socialite and antiquities collector built an elaborate Florida villa and estate named Vizcaya on Biscayne Bay in Miami.

Old Westbury Gardens is the former estate of John Shaffer Phipps who had the 44-room English manor house house commissioned as a wedding present to his wife, Margarita Grace Phipps. It was completed in 1906 by the English designer George A. Crawley on 200 acres of formal gardens, landscaped grounds, woodlands, ponds and lakes.

Biltmore, the opulent 250-room French Renaissance chateau, nestled in North Carolina’s Blue Ridge Mountains, was the vision of George Washington Vanderbilt, carried out by renowned architect Richard Morris Hunt. Construction began in 1889 and the opulent estate, with grounds designed by Frederick Law Olmsted, was opened on Christmas Eve in 1895 to family and friends.

Boscobel is a historic house museum located in Garrison, New York. It was built between 1804 and 1808 as the dream house of wealthy Loyalist, States Morris Dyckman in Montrose, New York.

Built between 1863 and 1868, Kylemore Castle, was a 70-room private home for Mitchell Henry and his family. Mitchell was the son of a wealthy Manchester cotton merchant, and he was skilled pathologist and eye surgeon, who ended up getting involved with politics.

In 1902, Herbert Pratt hired James Brite to build the first house to occupy the site. Ten years later the house was torn down and the current building was constructed.

The Villa started as an ancient Cistercian woman’s monastery, which was built in the 12th century. The transformation in 1569 started with the Mornico family from Valassina, who owned the property for more than three centuries.

The Villa was built by the wealthy Rufolo family in the 13th century. When built, it was one of the largest, most expensive villas on the Amalfi coast.