The Casements, named for the large hand-cut casement-style windows that adorn the mansion, was purchased in 1918 by John Davidson Rockefeller at age 78.

Thomas Edison is best known for the incandescent lamp and phonograph, but Edison’s greatest invention was a new way to invent: the industrial research and development laboratory.

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.

Henry Plant hired New York architect J. A. Wood to design the luxurious Tampa Bay Hotel in the style of a Moorish palace.

The property was originally part of an estate owned by Martha Washington’s grandson, George Washington Parke Custis,

The Morse Museum houses the world’s most comprehensive collection of Louis C. Tiffany’s work, including jewelry, pottery, paintings, leaded-glass windows and lamps.

This five-part Georgian mansion was built in the 1760s and then carefully restored by Historic Annapolis beginning in 1965.

Newburgh boasts a rich history, particularly related to the American Revolutionary War.

Eastern State was the world’s first true penitentiary. It was operational from 1829 to 1971 and is renowned for its innovative architecture and penal philosophy.

The island was known as Blackwell’s Island and Welfare Island and finally becoming Roosevelt Island in honor of President Franklin D. Roosevelt in 1973.

More than 1,000 feet of Jekyll Island’s coastline has eroded, and Driftwood Beach is the visually dramatic evidence.

Hidden in plain site in the Glen Oaks section of Queens is one of the longest continually farmed sites in New York City.

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

Lewes is a charming small town that is located where the Delaware Bay meets the Atlantic Ocean. When you stroll the streets of the historic district you will see unique shops, museums, and restaurants to please every palate.

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 Jekyll Island Club membership was like a ‘Who’s Who’ of the the late 19th and early 20th centuries and represented 1/6th of the world’s wealth at the time including Rockefeller’s, Vanderbilts, Pulitzers, Morgans, Gould and more.

The museum regularly hosts exhibitions that showcase various aspects of fashion, including thematic, contemporary and historical designs.

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.

Savannah is the oldest city in the state of Georgia, established in 1733. The downtown Historic District, considered one of the largest in the U.S., largely retains the original twenty-two parklike square plans laid out by James Oglethorpe.

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