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The Franklin Institute is a science museum named after Benjamin Franklin, founded in 1824 and housed since 1934 in a Neoclassical building on the Benjamin Franklin Parkway. It has hands-on exhibits on physics, electricity, the human body and space, the Fels Planetarium, a Baldwin steam locomotive and the Benjamin Franklin National Memorial.

Boathouse Row is a line of 19th-century boathouses on the east bank of the Schuylkill River beside the Fairmount Water Works, home to the city's rowing clubs. The buildings are private clubhouses seen from Kelly Drive and the river trail, and their outlines are lit at night; the row is a National Historic Landmark.

The Philadelphia Zoo, chartered in 1859 and opened in 1874, was the first zoo in the United States and covers about 17 hectares in West Fairmount Park. Its Victorian entrance gatehouses are by Frank Furness, and the Zoo360 network of mesh trails lets primates and big cats move above the visitors' paths.

The Mütter Museum is the medical history museum of the College of Physicians of Philadelphia, founded in 1858 with the collection of the surgeon Thomas Dent Mütter. It shows anatomical and pathological specimens, wax models, skeletons and antique medical instruments, including the Hyrtl skull collection and slides of Albert Einstein's brain.

The Penn Museum is the University of Pennsylvania's museum of archaeology and anthropology at 33rd and South Streets, in a brick building begun in 1899. It holds more than a million objects from its own excavations and collecting, with galleries on Egypt, the Middle East, Greece, Rome, Africa, Asia and the Americas, including a 13-ton granite sphinx of Ramesses II.

Valley Forge National Historical Park, about 30 km north-west of Philadelphia, preserves the site where George Washington's Continental Army spent the winter of 1777–78. Roads and trails link reconstructed soldiers' huts, Washington's Headquarters in the Isaac Potts House, the National Memorial Arch and open meadows.

Fort Adams is a granite coastal fort at the entrance to Newport Harbor, built between 1824 and 1857 to a plan by the French engineer Simon Bernard. It stands in Fort Adams State Park, where the Newport Jazz and Folk Festivals are held; visitors walk the parade ground and casemates or take guided tours of the tunnels.

Rough Point is an English manor-style house built in 1887–1892 for Frederick W. Vanderbilt on a point at the southern end of Bellevue Avenue. It later belonged to the tobacco heiress Doris Duke, and the Newport Restoration Foundation she founded opened it as a museum in 2000 with her collections of art and furniture.

Marble House was built in 1888–1892 for William K. Vanderbilt and his wife Alva, to designs by Richard Morris Hunt inspired by the Petit Trianon at Versailles. The house uses about 14,000 cubic metres of marble; its gilded ballroom and the Chinese Tea House on the cliff-side lawn are part of the visit.

Rosecliff was built in 1898–1902 for the silver heiress Theresa Fair Oelrichs, designed by Stanford White after the Grand Trianon at Versailles. Its heart-shaped staircase and large ballroom have appeared in films such as The Great Gatsby, and the lightly furnished upper floor is used for changing exhibitions.

Trinity Church is an Anglican, now Episcopal, parish church built in 1725–1726 by the master builder Richard Munday after designs by Christopher Wren. The white wooden church on Queen Anne Square keeps its box pews and a three-tiered wineglass pulpit, and its graveyard holds colonial headstones from the 18th century.

Chateau-sur-Mer was built in 1852 for the China trade merchant William Shepard Wetmore and enlarged in the 1870s by Richard Morris Hunt. The granite house on Bellevue Avenue shows High Victorian architecture, furniture, wallpapers and stencilled decoration, and was the largest residence in Newport before the Vanderbilt houses.

The Cliff Walk is a public path of about 5.6 km along Newport's eastern shoreline, from Memorial Boulevard at Easton's Beach south towards Bailey's Beach. It runs between the rocky coast and the lawns of Gilded Age mansions such as The Breakers, partly paved and partly over rough rock.

Touro Synagogue was built in 1759–1763 for Newport's Sephardic congregation, to designs by Peter Harrison, and is the oldest synagogue building still standing in the United States. In 1790 George Washington wrote his letter on religious liberty to its congregation; guided tours start at the Loeb Visitors Center next door.

The International Tennis Hall of Fame occupies the Newport Casino, a shingle-style social club designed by McKim, Mead & White and opened in 1880, where the first U.S. National Championships were played in 1881. Its museum covers the history of tennis and its inductees, and the grass courts on the grounds are still played on.

The Breakers is the summer house Richard Morris Hunt designed for Cornelius Vanderbilt II, built in 1893–1895 in the style of an Italian Renaissance palazzo above the Atlantic shore. Its 70 rooms, with the two-storey Great Hall, are shown with their original furnishings by the Preservation Society of Newport County.

Franklin Park Zoo is a 29-hectare zoo in the north-east corner of Franklin Park, part of Boston's Emerald Necklace park chain, opened in 1912 and run today by Zoo New England. Its areas include the indoor Tropical Forest with western lowland gorillas, the Serengeti Crossing with zebras and giraffes, Bird's World and a children's farm.

The Isabella Stewart Gardner Museum in the Fenway is an art museum opened in 1903 by the collector Isabella Stewart Gardner in a building modelled on a Venetian palazzo. Galleries around a planted courtyard hold European, Asian and American art, including works by Titian, Rembrandt and Sargent. Empty frames recall the theft of 13 works in 1990.

The Museum of Fine Arts Boston is an art museum in the Fenway area, founded in 1870 in Copley Square and housed since 1909 in a granite building by Guy Lowell on Huntington Avenue. Its collection of more than 450,000 works ranges from ancient Egyptian and Japanese art to European paintings and American art in the Art of the Americas wing.

Fenway Park is a baseball stadium near Kenmore Square in Boston, home of the Boston Red Sox since it opened in 1912 and the oldest ballpark in Major League Baseball still in use. Its tall left-field wall is known as the Green Monster. Visitors come for games in season and for hourly guided tours of the stands and field all year.