18th Street station (IRT Lexington Avenue Line)

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.

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.

Max's Kansas City was a nightclub and restaurant at 213 Park Avenue South in New York City, which became a gathering spot for musicians, poets, artists and politicians in the 1960s and 1970s. It was opened by Mickey Ruskin (1933–1983) in December 1965 and closed in 1981.

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.

The Old Town Bar and Restaurant is a noted bar and restaurant located between Park Avenue and Broadway at 45 E. 18th Street in the Flatiron District, Manhattan in New York City, one block north of Union Square. Originally a German establishment called Viemeisters, the bar has been in continuous operation since 1892, making it one of the oldest bars in the New York City area. When it first opened, Viemeisters was a place that served only drinks, but during Prohibition, the bar was forced to change its name to Craig's Restaurant and start serving food in order to operate as a speakeasy. After the end of Prohibition and the closing of the nearby 18th Street Subway station in 1948, the bar began to fall into disrepair. It wasn't until the late 1960s, when local bar manager Larry Meagher took over operations, that the bar saw a resurgence of popularity.The Old Town Bar has managed to preserve a lot of its original fixtures which date back to the 19th century. The bar itself is 55 feet long and made of marble and mahogany. The ceiling, made of "tin" – actually pressed steel tiles, is 16 feet high. Other original furnishings include large beveled mirrors, antique cash registers, wooden booths, and New York's oldest dumbwaiter that ferries food orders from the upstairs kitchen down to the bar. Another notable feature is the row of old-style full-length urinals in the first floor Men's room, dating back to 1910. A creaky wooden staircase (also original) leads to an upstairs dining area, which was closed for several years before being reopened in the 1970s to cater to an unexpected increase in patrons coming to the bar on their lunch break.Several artists and Hollywood directors have used the Old Town as a backdrop for their productions and movie scenes, including rap group House of Pain for a music video for their 1992 single "Jump Around", and director Whit Stillman for his 1998 feature film The Last Days of Disco. It also appeared in the films The Devil's Own (1997), State of Grace (1990), Q & A (1990), Bullets over Broadway (1994), and Madonna's 1993 "Bad Girl" video. The bar also appeared in the television shows, Sex and the City, Mad About You, The Marvelous Mrs. Maisel and in the opening montage of Late Night with David Letterman from 1987 to 1992. The exterior was used in the television sitcom "Mad About You" to represent the fictional establishment "Riffs" in the show.

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 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.

225 Park Avenue South (originally named the American Woolen Building for its tenant, American Woolen Company) is an office building complex in the Flatiron District of Manhattan, New York City. Located at the northeast corner of Park Avenue South and East 18th Street, it is two blocks north of Union Square. The property includes the 19-story 225 Park Avenue South, as well as the 12-story 233 Park Avenue South. Orda Management owns the facility, which served as a temporary headquarters for the Port Authority of New York and New Jersey (PANYNJ) from 2001 to 2015 after its previous headquarters in the former World Trade Center complex were destroyed in the September 11, 2001 attacks. The complex also formerly had the headquarters of Crown Publishing Group.

The Florence Apartment House (later called the Florence Apartments, the Florence, and Hotel Florence) was an apartment building in New York City on the northeast corner of East 18th Street and Fourth Avenue (later known as East Union Place and today as Park Avenue South). The seven-story, 42-unit building was built in 1878 by Virginia Leedy Matthews, née Brander, for some $500,000 ($15,162,069 today), mostly financed by a $400,000 balloon loan from The Bank for Savings in the City of New-York. Matthews was the wife of Edward Matthews, "a real estate entrepreneur who at one time controlled more property from Wall Street south than anyone else."It was designed by a Belgian emigrant, Emile Gruwé, and built by the firm of White and McEvoy. Faced with pressed brick and a Nova Scotia stone façade, the seven-story building occupied 200 feet on East 18th Street and 53 feet on Fourth Avenue. It had interior plumbing and was intended to be the city's first fireproof apartment house. It was designed so it could be operated as a hotel, and did so for a time; the New-York Historical Society holds a photo and documents about Hotel Florence.Among the building's prominent residents were publisher and editor Francis Pharcellus Church; Jane Louise Melville, the widow of author Herman Melville; and Jane Byrd Mercer, wife of architect Schuyler Hamilton Jr. Since 1909, the site has been occupied by 225 Park Avenue South, a 19-story office building.

ABC Kitchen is a restaurant in New York City. The restaurant received the James Beard Foundation Award for Best New Restaurant.

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