Kate Mullany House

Oakwood Avenue Presbyterian Church is a historic Presbyterian church located at Troy, Rensselaer County, New York. It was built in 1868, and is a two-story, three bay by five bay, rectangular frame building. It has a gable roof topped by belfry. An education wing was added in 1957.: 3 It was listed on the National Register of Historic Places in 2012.

St. Barnabas Episcopal Church, later called Christ & St. Barnabas Episcopal Church, and now known as New Hope Missionary Baptist Church, is an historic Episcopal church and rectory at 2900 Fifth Avenue in Troy, Rensselaer County, New York. The church was built in 1895 and is a red brick church in the Late Gothic Revival style. It has a gable roof and three hipped dormers. It has an open bell tower and slender conical turrets. It features a rose window depicting the Madonna and Child. The former rectory is a 2+1⁄2-story, L-shaped brick residence. Also on the property is a contributing carved stone crucifixion dated to about 1900.It was listed on the National Register of Historic Places in 2004.

The Northern River Street Historic District is located along River Street (southbound US 4 at that point) north of Federal Street, one block east of the Green Island Bridge, in Troy, New York, United States. It was added to the National Register of Historic Places in 1988, as the Northern River Street District, to distinguish it from Troy's previously existing River Street Historic District, which had been one of five superseded by the Central Troy Historic District to the south two years earlier. Its two acres (8,000 m²) include 13 brick industrial and commercial buildings erected from the mid-19th to early 20th centuries. They were cut off from the rest of downtown due to the construction of the Rensselaer and Saratoga Railroad, and as a result became a production center for the city's major industries, primarily textiles. When those industries declined in the mid-20th century, they were further isolated from the city's center by expansion of Federal Street to provide access to the bridge, and various urban renewal efforts. As a result, they have not seen much redevelopment and remain mostly intact.

The Collar City Bridge (also known as the Hoosick Street Bridge) carries NYS Route 7 (NY 7) across the Hudson River connecting Colonie, New York with Troy, by way of passing over Green Island. Though the northern terminus of Interstate 787 (I-787) is unclear, there is sign evidence of a concurrency at least halfway across the bridge.

The Church of the Holy Cross is a church in Troy, New York, United States. It was added to the National Register of Historic Places in New York in 1973. It borders the Rensselaer Polytechnic Institute campus to the East and South. The church was founded by Mary Warren in the early 1840s. Under the direction of Mary Warren's son, Nathan B. Warren, the church nave was built from designs by Alexander Jackson Davis in 1844. The chancel addition, by Richard Upjohn, was completed in late 1848 and dedicated in January, 1849. In 1846, the Church instituted one of the first choirs at an Episcopal church in the United States. During the full choral service, the psalter, creed and responses of the English Cathedral Service are chanted by the choir while the officiant intones his part. In 1863, the Mary Warren Free Institute was built adjoining the church to the south in order to further religious and musical instruction. The Institute still exists to this day.

Esek Bussey Firehouse, now known as Engine Company 8 or Pumper Number 8, is a historic fire station located at Troy in Rensselaer County, New York. It was built in 1891-1892 and is a two-story, red brick building. It features a corbeled brick frieze, flat roof, rusticated stone work, and terra cotta detailing.It was listed on the National Register of Historic Places in 1973.

Troy Waste Manufacturing Company Building, also known as the McCarthy Building, is a historic textile factory located at Troy, Rensselaer County, New York. It was built about 1908, and is a five-story, triangular shaped brick building with a flat roof and high basement. It features a tall square stair tower, formal entranceway, and Classical Revival style terra cotta ornamentation.: 6 It was listed on the National Register of Historic Places in 2014.

West Hall is a building on the Rensselaer Polytechnic Institute campus in Troy, New York, United States. It is currently home to the Arts Department at RPI. It was previously a hospital, and is listed on the National Register of Historic Places as Old Troy Hospital.

The Troy Trojans were a Major League Baseball team in the National League for four seasons from 1879 to 1882. Their home games were played at Putnam Grounds (1879) and Haymakers' Grounds (1880–1881) in the upstate New York city of Troy, and at Troy Ball Clubs Grounds (1882) across the Hudson in Watervliet, or "West Troy" as it was known at the time. The first grand slam home run in Major League history was hit by Roger Connor of the Trojans in 1881 in East Albany (now known as Rensselaer) in what is now the Rensselaer Riverfront Park. The site in present day Rensselaer was infrequently used to host games when their normal field was unavailable. A baseball diamond in the park is currently in use very close to where the diamond would have been back in the 1880s. The site of the historic grand slam was only recently discovered as it was previously assumed to have occurred in eastern Albany. Overall, the franchise won 131 games and lost 194. The Trojans, along with the Worcester NL team, were expelled from the league shortly before the end of the 1882 season, as Troy and Worcester were seen as too small for the league's ambitions, but were encouraged to play out the rest of their seasons as lame-duck teams. On September 28, 1882, only 6 fans appeared to watch Worcester host the Trojans in the second-to-last game of the season, then only 25 arrived for the last game between the two teams. Among games that have had at least one paying attendee, the attendance figure of 6 is the lowest attendance ever recorded at a Major League Baseball game. In 1883 the New York Gothams, later known as the Giants, took the Trojans' former slot in the National League. Four of the original Gotham players were former members of the disbanded Trojans, including three Hall of Famers: Buck Ewing, Roger Connor and Mickey Welch. Notable players for the Trojans included Hall of Famers Dan Brouthers, Connor, Ewing, Tim Keefe, and Welch. Another Troy Trojans minor league team continued play until at least 1916.

The Green Island Bridge crosses the Hudson River in New York, connecting Green Island with Troy, passing through Starbuck Island. It opened September 12, 1981.

Ricketts Building is a building that is home to the Department of Chemical and Biological Engineering at the Rensselaer Polytechnic Institute in Troy, New York. It is named for Palmer C. Ricketts, the ninth president of Rensselaer Polytechnic Institute. The building opened in 1935. It is currently used for labs, lectures, and some clubs.

The Winslow Chemical Laboratory was a laboratory of the Rensselaer Polytechnic Institute campus in Troy, New York, United States, which finished construction in 1866. It is named in honor of the 5th President of RPI, John F. Winslow, who donated half of the construction cost. The building is brick with stone trimmings and was originally constructed with butternut, chestnut and black walnut. The whole building was fitted for complete courses in general and analytical chemistry. The design and construction was overseen by Professor Henry B. Nason, head of the department of chemistry at the Institute. The lower story contained the metallurgical laboratory and second story contained the chemical laboratory, store rooms and work rooms. The laboratory could accommodate about 40 students. The third story contained a lecture room, a private study, the library and a recitation room. The library of chemical books was established by a donation of several sets of journals and a gift of three hundred dollars from John F. Winslow.The laboratory was damaged by a fire in the upper story in 1884 and was rebuilt and enlarged in 1885. The building was again damaged by fire in 1904. It was used as a laboratory until 1907 and then converted into a shop. The building, falling into disrepair, was boarded up in the early 1970s and targeted for demolition. It was added to the National Register of Historic Places on November 4, 1990. As an effort to save the building, it was agreed with the city of Troy that the building would be leased to house a new children's science museum called the Junior Museum. The Junior Museum refurbished the Winslow building and opened its doors in 2000. Since then, the Junior Museum has moved to the Rensselaer Technology Park, and currently the Winslow Building is home to many research groups affiliated to Cognitive Science and Computer science departments of Rensselaer, namely, Rensselaer AI and Reasoning Lab, the Social and Behavioral Research Laboratory, the Tetherless World Constellation (since 2007) etc.