Hastings Square Historic District

Nectow v. City of Cambridge, 277 U.S. 183 (1928), was a United States Supreme Court case in which the Court reversed the Massachusetts Supreme Judicial Court ruling, and found that the invasion of the plaintiff's property right was "serious and highly injurious," and that the placement of the locus of the zoning ordinance would not promote the health, safety, convenience or general welfare of the inhabitants of Cambridge. It, along with Euclid v. Ambler, constituted the Supreme Court's case law on zoning until 1974.

Alvan Clark & Sons was an American maker of optics that became famous for crafting lenses for some of the largest refracting telescopes of the 19th and early 20th centuries. Founded in 1846 in Cambridgeport, Massachusetts, by Alvan Clark (1804–1887, a descendant of Cape Cod whalers who started as a portrait painter), and his sons George Bassett Clark (1827–1891) and Alvan Graham Clark (1832–1897). Five times, the firm built the largest refracting telescopes in the world. The Clark firm gained "worldwide fame and distribution", wrote one author on astronomy in 1899. The 18.5-inch (470 mm) Dearborn telescope (housed successively at the University of Chicago, Northwestern University and Adler Planetarium) was commissioned in 1856 by the University of Mississippi. The outbreak of the Civil War prevented them from ever taking ownership. As a result, it was being tested in Cambridgeport when Alvan Graham observed Sirius B in 1862. In 1873 they built the 26-inch (660 mm) objective lens for the refractor at the United States Naval Observatory. In 1883, they build the 30-inch (760 mm) telescope for the Pulkovo Observatory in Russia, the 36-inch (910 mm) objective for the refractor at Lick Observatory was made in 1887, and the 40-inch (1,000 mm) lens for the Yerkes Observatory refractor, in 1897, only ever exceeded in size by the lens made for Great Paris Exhibition Telescope of 1900. The company also built a number of smaller instruments, which are still highly prized among collectors and amateur astronomers. The company's assets were acquired by the Sprague-Hathaway Manufacturing Company in 1933, but continued to operate under the Clark name. In 1936, Sprague-Hathaway moved the Clark shop to a new location in West Somerville, Massachusetts, where manufacturing continued in association with the Perkin-Elmer Corporation, another maker of precision instruments. Most of Clark's equipment was disposed of as scrap during World War II, and Sprague-Hathaway itself was liquidated in 1958. Alvan Clark & Sons Telescopes

The Cambridge Assembly was a Ford Motor Company factory in Cambridge, Massachusetts which opened in 1913. The factory had the first vertically-integrated assembly line in the world. It was replaced in 1926 by the Somerville Assembly. The plant was later reused by Polaroid Corporation, and is now owned by the Massachusetts Institute of Technology.

The Ernst Flentje House is an historic house at 129 Magazine Street in Cambridge, Massachusetts. This three story wood frame apartment house exhibits the adaptive reuse of buildings. It was built in 1866 as a Second Empire single family residence with a mansard roof. In 1900 it was restyled by Ernst Flentje and converted into a three unit apartment house. It is one of the most exuberantly decorated triple deckers in the city.The house was listed on the National Register of Historic Places in 1983.

Kerry Quarter in Cambridge, Massachusetts, United States also called the Lower Marsh, was reclaimed from the Charles River during the construction of the Harvard River Dormitories. In a deal with the city of Cambridge, Harvard sold much of the reclaimed land along Putnam Ave to parishioners of St. Paul's Church in nearby Harvard Square. The new immigrants that moved to the area were almost entirely of Irish descent, and many hailed from County Kerry one of the hardest hit in the Irish Famine thus giving the area its name. For a long time this small quarter near Harvard housed some of the poorest people in the city, and still has several low income housing developments in around Putnam Ave. Although now mostly gentrified with condos taking over the former triple deckers of Irish immigrants, old residents still refer to it as the Kerry Quarter.

The Grand Junction Railroad Bridge is a steel plate girder bridge carrying the Grand Junction Railroad over the Charles River in Boston, connecting the Boston University campus to Cambridgeport. In September 2009, the Commonwealth of Massachusetts finalized an agreement to purchase several CSX rail lines in eastern Massachusetts, including the Grand Junction tracks from the Beacon Park Yard in Allston, through Cambridge. The deal was closed on June 17, 2010.

Magazine Beach is an American riverside park in Cambridge, Massachusetts. It is located on the left bank of the Charles River, across Memorial Drive from Cambridgeport, and opposite Agganis Arena and other Boston University facilities on the far bank. Magazine Beach is Cambridge's second largest park, being about 15 acres (6.1 ha) stretching along the river from Pleasant Street to the BU Bridge. The park includes a free outdoor swimming pool (Veteran's Memorial Pool) as well as ball fields, exercise equipment, picnic areas, and other typical urban park features. The Paul Dudley White Bike Path runs through the park. The park's namesake, a gunpowder magazine from 1818, is in the park. It is the oldest building in the Charles River Reservation. There was a swimming beach at the park in the early and mid 20th century, attracting about 60,000 swimmers in a season, but swimming in the Charles River became dangerous due to pollution, and was forbidden in 1949.

The Boston University Bridge, originally the Cottage Farm Bridge and commonly referred to as the BU Bridge, is a steel truss through arch bridge with a suspended deck carrying Route 2 over the Charles River, connecting the Boston University campus to Cambridge, Massachusetts. The bridge, with the Grand Junction Railroad Bridge directly underneath it, is incorrectly rumored to be the only place in the world where a boat can sail under a train driving under a car driving under an airplane. Other such places include the Steel Bridge in Portland, Oregon, the Manhattan Bridge in New York City and the 25 de Abril Bridge in Lisbon, although all of those bridges feature road and rail on the same span. In this case the rail and road traffic are on separate bridges.

Cambridgeport is one of the neighborhoods of Cambridge, Massachusetts. It is bounded by Massachusetts Avenue, the Charles River, the Grand Junction Railroad, and River Street. The neighborhood contains predominantly residential homes, many of the triple decker style common in New England. Central Square, at the northernmost part of Cambridgeport, is an active commercial district and transportation hub, and University Park is a collection of renovated or recently constructed office and apartment buildings. The neighborhood also includes Fort Washington Park, several MIT buildings, and Magazine Beach. The neighborhood is Area 5 of Cambridge.

The Shell Oil Company "Spectacular" Sign is a historic advertising sign by the Shell Oil Company (the US-based subsidiary of Royal Dutch Shell) located at 187 Magazine Street in Cambridge, Massachusetts.

The Edmund Reardon House is a historic house in Cambridge, Massachusetts. The 2.5-story Queen Anne house was built in 1884 for Edmund Reardon, whose family operated a nearby soap factory. The house has elaborately decorated porches and half-timbering in various gable ends.The house was listed on the National Register of Historic Places in 1982.

The Andrew Newman House is a historic house in Cambridge, Massachusetts. It is a 1+1⁄2-story wood-frame structure, five bays wide, with a central chimney and an entrance sheltered by an enclosed vestibule. Built in 1823, this single story wood-frame house is one of the oldest houses in the Cambridgeport area of the city. The house is also unusual for its construction date, since it is a Georgian style Cape house, as opposed to the then-prevalent Federal style. Its first owner was a ropemaker.The house was listed on the National Register of Historic Places in 1982.