The Breakers is the grandest of Newport's summer "cottages" and a symbol of the Vanderbilt family's social and financial preeminence in turn-of-the-century America. Commodore Cornelius Vanderbilt (1794–1877) established the family fortune in steamships and later in the New York Central Railroad, which was a pivotal development in the industrial growth of the nation during the late 19th century. The Commodore's grandson, Cornelius Vanderbilt II, became Chairman and President of the New York Central Railroad system in 1885, and purchased a wooden house called The Breakers in Newport during that same year. In 1893, he commissioned architect Richard Morris Hunt to design a villa to replace the earlier wood-framed house which was destroyed by fire the previous year. Hunt directed an international team of craftsmen and artisans to create a 70-room Italian Renaissance- style palazzo inspired by the 16th-century palaces of Genoa and Turin. Allard and Sons of Paris assisted Hunt with furnishings and fixtures, Austro-American sculptor Karl Bitter designed relief sculpture, and Boston architect Ogden Codman decorated the family quarters.

The mansion offers tours.

Marble House was built between 1888 and 1892 for Mr. and Mrs. William K. Vanderbilt, a summer house, or "cottage," as Newporters called them in remembrance of the modest houses of the early 19th century. But Marble House was much more; it was a social and architectural landmark that set the pace for Newport's subsequent transformation from a quiet summer colony of wooden houses to the legendary resort of opulent stone palaces.

The house offers tours.

The Elms was the summer residence of Mr. and Mrs. Edward Julius Berwind of Philadelphia and New York. Mr. Berwind made his fortune in the Pennsylvania coal industry. In 1898, the Berwinds engaged Philadelphia architect Horace Trumbauer to design a house modeled after the mid-18th-century French chateau d'Asnieres (circa 1750) outside Paris. Construction of The Elms was completed in 1901 at a cost reported at approximately $1.4 million. The interiors and furnishings were designed by Allard and Sons of Paris and were the setting for the Berwinds' collection of Renaissance ceramics, 18th-century French and Venetian paintings, and Oriental jades. The elaborate Classical Revival gardens on the grounds were developed between 1907 and 1914. They include terraces displaying marble and bronze sculpture; a park of fine specimen trees; and a lavish lower garden featuring marble pavilions, fountains, a sunken garden, and carriage house and garage.

The mansion offers tours.

The Museum of Natural History is Rhode Island's only natural history museum and is home to the state's only planetarium. The Museum houses collections containing over one-quarter million objects pertaining to natural and cultural history assembled from sites around the world. The natural history collections include fossils, mollusks, minerals, rocks, and mounted flora and fauna. The cultural collections contain over 24,000 archaeological and ethnographic specimens primarily of Native American and Pacific origin.

The museum offers exhibits, educational programs, planetarium shows, and educational and recreational events.

An Italianate-style villa, Chepstow was built in 1860 by resident Newport architect George Champlin Mason as the summer residence of Edmund Schermerhorn. Containing the original Morris-Gallatin furnishings together with important 19th-century American paintings and documents from other former Morris family residences, Chepstow is highly evocative of the taste and collections of a descendant of one of America's founding families, placed in the context of a contemporary Newport summer home.

The home offers tours.

Hunter House is one of the finest examples of Georgian Colonial architecture from Newport's "golden age" in the mid-18th century. The house was built and decorated when Newport was a cosmopolitan city with a principle of religious tolerance that attracted Quakers, Baptists, Congregationalists, and Sephardic Jews. The great mercantile families lived patrician lives, building harbor-front mansions overlooking their trading ships, and entertained in grand style. They bought furniture and silver from local craftsmen and were the patrons of such important early painters as Robert Feke and Gilbert Stuart.

The house offers tours.