Beaver Brook station

The Eastern Middlesex County Second District Court is a historic courthouse of the Massachusetts District Court at 38 Linden Street in Waltham, Massachusetts. Built in 1938-40, it is one of three Art Deco buildings in the city, and its most fully realized example of the style. The building was listed on the National Register of Historic Places in 1989.

The Hager–Mead House is a historic house at 411 Main Street in Waltham, Massachusetts. The 2+1⁄2-story wood-frame house was built in 1795, and is one of the city's small number of 18th-century houses. It is five bays wide and two deep, with chimneys set in the ridge, and a center entry flanked by Doric pilasters and topped by a six-pane transom window and modillioned cornice. The house was built by Samuel Hager, a farmer from Watertown, who promptly sold it Stephen Mead, a blacksmith, in 1796.The house was listed on the National Register of Historic Places in 1989.

The East Main Street Historic District is a small residential historic district in Waltham, Massachusetts. It encompasses part of an area that was, before the 1813 construction of the Boston Manufacturing Company further west, developing as a center of the community. Because of the company's economic influence, the center was more fully developed further west, and East Main Street became a fashionable area for upper class housing. The four houses on the south side of East Main Street between Townsend Street and Chamberlain Terrace are a well-preserved remnant of this later period. The district was listed on the National Register of Historic Places in 1989.The Lyman Reed House, at 436 Main Street, is the oldest of the four houses. Built in 1844, it is one of a few temple-front Greek Revival houses in the city. It has a full suite of high-style Greek Revival features, including pilastered corner boards, a full entablature, and full-length windows on the first floor of the main facade. The newest of the houses is the Charles P. Nutting House at 446 Main Street. Built c. 1900, it is a Colonial Revival structure with significant Queen Anne and Shingle style elements. Its gambrel roof sweeps down to the first floor, where it covers a veranda that extends across the front. The veranda has a fieldstone skirt and piers, with a round arch entry.The other two houses are both Italianate in style. The Francis Blanchard House, at 428 Main Street, was built c. 1850-54, and has Greek Revival features, including a pedimented gable end facing the street and corner pilasters, but it also has a typically Italianate round-arch window in the gable. The George W. Chamberlain House at 418 Main Street (built about the same time) is more strongly Italianate, with a projecting gable roof that has paired brackets and a crowning belvedere. Greek Revival elements include flushboard siding and corner pilasters.

The Grove Hill Cemetery is a historic cemetery at 290 Main Street in Waltham, Massachusetts. Established in 1703, the cemetery was Waltham's only cemetery until 1857, when Mount Feake Cemetery opened. It was authorized in 1703, but its initial 2.3-acre (0.93 ha) parcel of land was not purchased until 1704. The first documented burial, however, took place in November 1703. The northwest section of the cemetery is its oldest portion, and includes a number of unmarked gravesites. The cemetery continues in active use today, and contains a representative sample of funerary art spanning 300 years. It now covers more than 9 acres (3.6 ha), extending between Main and Grove Streets. Its main entrance features posts with an Egyptian Revival theme, a style continued with the presence of obelisks dispersed on the grounds.Two notable people are buried here. Nathaniel P. Banks (1816–1894) was a Civil War Major General and later politician. US Navy sailor Charles Gidding (1855–1943) was a peacetime Medal of Honor recipient.The cemetery was listed on the National Register of Historic Places in 1989.

The Linden Street Bridge is a historic bridge on the abandoned Central Massachusetts Railroad over Linden Street (Massachusetts Route 60) in Waltham, Massachusetts. It is a riveted lattice through truss bridge, built in 1894 by the Pennsylvania Steel Company, and is one of only three such bridges left in the state. The bridge is 98 feet 3 inches (29.95 m) long and 17 feet (5.2 m) wide, with an inside truss height of 21 feet 11.5 inches (6.693 m), and rests on granite abutments. The design of the bridge was based on that of the Northampton crossing of the Connecticut River by the same railroad. This section of the Central Massachusetts Branch, and the bridge, have been out of service since the early 1990s when service to the last customer, a lumber dealer located on Emerson Road, ended.The bridge was listed on the National Register of Historic Places in 1989. In 2022, the city was awarded a $500,000 state grant to restore the bridge as part of the Mass Central Rail Trail.

The Bentley Arena is an ice hockey arena on the campus of Bentley University in Waltham, Massachusetts. It is home to the Bentley Falcons men's ice hockey program, replacing the previous facility, the John A. Ryan Arena. The first hockey game was on February 16, 2018 with Bentley taking on Army West Point. The total capacity for hockey games is 2,240.The 76,000 square foot facility was designed by Architectural Resources Cambridge and built by Suffolk Construction. Ground broke on the Arena in the summer of 2016, and was completed in February 2018. In May 2018, the Arena was awarded an LEED Platinum rating, the highest possible rating for sustainability, according to the U.S. Green Building Council. Since opening, the arena has hosted various events, such as Bentley's annual Spring Day concert.

The John E. Olcott House is a historic house at 35–37 Central Street in Waltham, Massachusetts. Built c. 1837, the two story house is a rare local example of Federal style executed in brick. The house was built and occupied by John Olcott, a bricklayer, and is essentially vernacular in its styling, lacking some of the flourishes found in the more elaborate Elijah Fiske House. It is five bays wide, with a shallow-pitch hip roof, twin chimneys, and a projecting enclosed entry vestibule.The house was listed on the National Register of Historic Places in 1989.

The Richard Holbrook Houses are a pair of joined historic houses at 29 and 31 Heard Street in Waltham, Massachusetts. Both are 1+1⁄2-story Greek Revival cottages, that once had detailed styling, which has since been lost or sided over. The two houses were built in 1844 by Richard Holbrook, a housewright, and are rare surviving examples of a once-common form. The houses went through separate ownerships until 1892, when Patrick Welch acquired the second after acquiring the first in 1886. He was probably responsible for building the central connecting section.The houses were listed on the National Register of Historic Places in 1989.

The Brigham House is a historic house at 235 Main Street in Waltham, Massachusetts. Built about 1893, it is an architecturally distinctive hybrid of Queen Anne, Shingle, and Colonial Revival styling. It was listed on the National Register of Historic Places in 1989.

The Lawton Place Historic District is a historic district on Lawton Place between Amory Road and Jackson Street in Waltham, Massachusetts. The district preserves some of the nation's oldest textile mill worker housing. The duplex houses located on the south side of Lawton Place were built c. 1815-17 by the Boston Manufacturing Company (BMC), the first mill to process textiles entirely under one roof. They were originally located at what is now the Waltham Common, and were moved to Lawton Place in 1889. On the north side stands a rowhouse that was built in 1889; it is the last instance of a type of row housing that was once commonly built for mill workers. The district was listed on the National Register of Historic Places in 1989.

A triple homicide was committed in Waltham, Massachusetts, in the United States, on or very near to the evening of September 11, 2011. Brendan Mess, Erik Weissman, and Raphael Teken were murdered in Mess's apartment. All had their throats slit with such great force that they were nearly decapitated. Thousands of dollars' worth of marijuana and money were left covering their mutilated bodies; in all, $5,000 was left in the apartment. The local district attorney said that it appeared that the killer and the victims knew each other, and that the murders were not random. Tamerlan Tsarnaev, the deceased suspect in the 2013 Boston Marathon bombings, had previously described murder victim Brendan Mess as his best friend, though before Mess was murdered there had been animosity between Tsarnaev and Mess over Mess's "lifestyle". After the bombings and subsequent revelations of Tsarnaev's personal life, the Waltham murders case was reexamined in April 2013 with Tsarnaev as a new suspect. Authorities said Tsarnaev and his younger brother Dzhokhar Tsarnaev may have been responsible for the triple homicide, that forensic evidence connected them to the scene of the killings, and that their cell phone records placed them in the area. While police in the first investigation said that victims were killed on September 12, The Boston Globe, Boston Herald, and The Wall Street Journal reported that at least one relative of the victims believes that the killings took place on September 11.In May 2013, Ibragim Todashev, a 27-year-old Chechen native and former mixed martial arts fighter who knew Tamerlan Tsarnaev, was shot and killed in Orlando, Florida, by law enforcement officers who had been interviewing him about the Waltham murders as well as the Boston Marathon bombings. The FBI has alleged that just before he was killed, Todashev made statements implicating both himself and Tamerlan Tsarnaev in the Waltham murders—saying that the initial crime was a drug robbery, and the murders were committed to prevent being identified by the victims.

The Newton Street Bridge is a historic bridge carrying Newton Street over the Charles River in Waltham, Massachusetts. The stone arch bridge was built in 1877 on the site of Waltham's first bridge, which was built c. 1761–62. It was designed by Hiram Blaisdell, a specialist in the design of masonry bridges. It consists of three elliptical arch segments on granite piers. The arches are formed of granite voussoirs, and the facing of the bridge is predominantly rough rock. It is the only 19th-century bridge in Waltham to escape significant alteration.The bridge was listed on the National Register of Historic Places in 1989.