1991 Union Square derailment

Marquis de Lafayette is an outdoor bronze sculpture of Gilbert du Motier, Marquis de Lafayette by artist Frédéric Auguste Bartholdi, located at Union Square Park in Manhattan, New York.

An outdoor bronze statue of Abraham Lincoln by Henry Kirke Brown is installed in Union Square in Manhattan, New York.

New York Film Academy – School of Film and Acting (NYFA) is a private for-profit film school and acting school based in New York City, Los Angeles, and Miami. The New York Film Academy was founded in 1992 by Jerry Sherlock, a former film, television and theatre producer. It was originally located at the Tribeca Film Center. In 1994, NYFA moved to 100 East 17th Street, the former Tammany Hall building in the Union Square. After 23 years of occupancy, the academy relocated from Tammany Hall to 17 Battery Place.As of 2012, the school has 400+ employees and over 5,000 students per year (many of them from outside the United States). NYFA offers master, bachelor, and associate degrees, as well as one- and two-year conservatory programs, short-term workshops, and youth programs and summer camps.

Union Square Theatre was the name of two different theatres near Union Square, Manhattan, New York City. The first was a Broadway theatre that opened in 1870, was converted into a cinema in 1921 and closed in 1936. The second was an Off-Broadway theatre that opened in 1985 and closed in 2016.

44 Union Square, also known as 100 East 17th Street and the Tammany Hall Building, is a three-story building at 44 Union Square East in Union Square, Manhattan, in New York City. It is at the southeast corner of Union Square East/Park Avenue South and East 17th Street. The neo-Georgian structure was erected in 1928–1929 and designed by architects Thompson, Holmes & Converse and Charles B. Meyers for the Tammany Society political organization, also known as Tammany Hall. It is the organization's oldest surviving headquarters building. The Tammany Society had relocated to 44 Union Square from a previous headquarters on nearby 14th Street. At the time of the building's commission, the society was at its maximum political popularity with members such as U.S. senator Robert F. Wagner, governor Al Smith, and mayor Jimmy Walker. However, after Tammany Hall lost its influence in the 1930s, the building was sold to an affiliate of the International Ladies' Garment Workers' Union in 1943. By the 1980s, it was used by the Union Square Theatre, while the New York Film Academy took space in 1994. The New York City Landmarks Preservation Commission designated the building as a city landmark in 2013, and it was converted into an office and retail structure during a renovation that took place between 2016 and 2020. The renovation preserved the facade while totally gutting the interior, and a glass domed roof was added to honor Chief Tamanend, namesake of the Tammany Society.

The W New York Union Square is a 270-room, 21-story boutique hotel operated by W Hotels at the northeast corner of Park Avenue South and 17th Street, across from Union Square in Manhattan, New York. Originally known as the Germania Life Insurance Company Building, it was designed by Albert D'Oench and Joseph W. Yost and built in 1911 in the Beaux-Arts style. The W New York Union Square building was initially the headquarters of the Germania Life Insurance Company. In 1917, when the company became the Guardian Life Insurance Company of America, the building was renamed the Guardian Life Insurance Company Building. A four-story annex to the east was designed by Skidmore, Owings & Merrill and was completed in 1961. Guardian Life moved its offices out of the building in 1999, and the W New York Union Square opened the following year. The main building, part of the hotel, was added to the National Register of Historic Places in 2001, and was designated a city landmark by the New York City Landmarks Preservation Commission in 1988. The Guardian Life annex, not part of the current hotel, was designated as a city landmark in 2007.

The Daryl Roth Theatre is an off-Broadway performance space at 101 East 15th Street, at the northeast corner of the intersection with Union Square East, near Union Square, Manhattan, New York City. The theater, opened in 1998, is housed in the four-story Union Square Savings Bank building, which was designed by Henry Bacon and built in 1905–1907. The original structure, a New York City landmark, houses a theater that can accommodate 300 seated or 499 standing patrons. The DR2 Theatre, located in an annex at 103 East 15th Street, seats 99.

Independence Flagstaff, also known as the Charles F. Murphy Memorial Flagpole, is an outdoor memorial by sculptor Anthony de Francisci, located in Union Square Park in Manhattan, New York, which commemorates the 150th anniversary of the signing of the United States Declaration of Independence. The memorial was cast in 1926 and dedicated on July 4, 1930. It was made of steel, with copper sheathing, and is set on a granite pedestal which includes bronze bas-reliefs and plaques. The monument is in axial alignment with Henry Kirke Brown's statues of George Washington and Abraham Lincoln.

Talwar Gallery is a contemporary Indian art gallery. Founded by Deepak Talwar, it opened in New York City in September 2001 and in New Delhi in 2007.

The Century Building (formerly also known as the Drapery Building) is a Queen Anne style building at 33 East 17th Street between Park Avenue South and Broadway in Union Square, Manhattan, New York City. It was designed by William Schickel and built in 1880–1881 by Arnold Constable & Company. The Century Building consists of five floors topped by a 1+1⁄2-story attic. The Century Building was constructed as a speculative development with no main tenant. The building contained the headquarters of the Century Publishing Company from 1881 until 1915, and was also occupied by various other commercial and industrial concerns. Left vacant in the late 1970s, it was renovated into a Barnes & Noble bookstore in 1995. The Century Building was designated a New York City landmark in 1986, and was added to the National Register of Historic Places in 1997.

The Everett Building is a 16-story commercial tower at 200 Park Avenue South at the northwest corner with East 17th Street, on Union Square in Manhattan, New York. It was designed by the architectural firm of Starrett & van Vleck and opened in 1908. Goldwin Starrett, the lead architect, had worked for Daniel Burnham for four years in Chicago, and as such the building reflects Burnham's functionalist philosophy. It marked the development of fireproof commercial skyscrapers with open plan interiors and simple, classical exteriors.In 1988, the Everett Building was designated a New York City landmark. The Everett Building, along with the W New York Union Square (formerly Germania Life Insurance Company Building) at the northeast corner of Park Avenue South and 17th Street, were described by the New York City Landmarks Preservation Commission as forming an "imposing terminus to Park Avenue South". The Everett Building is located directly east of the Century Building, another New York City landmark.

Marcus & Co. was an American luxury jewelry retailer from 1892 to 1962 in New York City.