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

Ringwood Manor became the Gilded Age summer estate of partners Peter Cooper and Abram Hewitt and their families in 1853.

I have to start off by saying I did not expect what I saw at Winterthur. I had initially thought it would be a nice gilded age house museum, where you tour and admire different rooms filled with paintings and antiques. Instead, what I experienced in the former home of Henry Francis du Pont, was an extensive collection of American decorative arts in 175 rooms with over 90,000 individual objects on an estate with 1,000 natural garden acres of rolling hills, streams, meadows and forests.

The Cloister’s museum buildings were constructed by merging various medieval styles and portions of buildings, and the overall design was the work of Charles Colleens. The museum was opened in 1938, and the park and museum were donated by oil magnate and philanthropist John D. Rockefeller.

Reynolda was built between 1912 and 1917 by Kathharine Smith Reynolds and her husband R.J. Reynolds, founder of the R.J. Reynolds Tobacco Company, on 1,067 acres.

Sefton Manor, now called Mill Neck Manor, is a Tudor-Revival mansion that sits on 86 acres on the north shore of Long Island overlooking the Sound in Mill Neck.

Coe Hall is the 65-room centerpiece of the 409-acre Planting Fields Historic State Park located in Oyster Bay, New York. The estate was originally landscaped by Frederick Law Olmsted, featuring greenhouses, rolling lawns, formal gardens, woodland paths and outstanding plant collections.