Decker Building

The Bank of the Metropolis was a bank in New York City that operated between 1871 and 1918. The bank was originally located at several addresses around Union Square in Manhattan before finally moving to 31 Union Square West, a 16-story Renaissance Revival building designed by Bruce Price and built between 1902 and 1903.The bank building uses a tripartite facade design and neoclassical elements. After the Bank of the Metropolis merged into the Bank of Manhattan in 1918, the building continued to be used as an office tower. The upper stories were converted for residential use in 1976, while the ground level was later used as a restaurant. The Bank of the Metropolis building was designated a city landmark by the New York City Landmarks Preservation Commission in 1988, and was added to the National Register of Historic Places in 2003.

The Coffee Shop was a restaurant and bar located next to Union Square, New York City. Before The Coffee Shop opened, the building was home to a coffee shop and cafe called Chase. The owners of Chase had placed a large neon sign outside the building reading "Coffee Shop" and the new tenant took its name from the sign and left it attached to the building. The restaurant was known for being popular with celebrities and members of New York's fashion scene.In mid-2018, the restaurant's owners announced it would close in October 2018. It is one of several restaurants on Union Square that have closed due to rising rents.

Union Square Drinking Fountain, also known as James Fountain, is an outdoor bronze sculpture and ornamental fountain by sculptor Adolf von Donndorf and architect J. Leonard Corning, located on the west side of Union Square Park in Manhattan, New York City. Cast in 1881 and dedicated on October 25, 1881, it was donated by Daniel Willis James "to promote public health as well as the virtue of charity". The statuary group includes a standing woman holding a baby in her right arm and a young child at her left side. They are set on an octagonal Swedish red granite pedestal with lion head fountains and basins on four of the sides.

Kanyakumari is an Indian restaurant in New York City off of Union Square in the Flatiron District primarily focusing on coastal Southern Indian food.

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

Laut is a restaurant in New York City. The restaurant serves Malaysian and Thai cuisine, and has received a Michelin star.

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

9–11 East 16th Street is a seven-story building between Union Square West and Fifth Avenue in the Ladies' Mile Historic District of Manhattan in New York City, just west of Union Square. The building was designed by Louis Korn for Martin Johnson and built between 1895 and 1896.

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.

On August 4, 2023, at approximately 3:30 p.m. EDT, internet personality Kai Cenat held a purported giveaway of gaming-related items in Union Square, Manhattan, while not having a permit for the gathering. The event, which drew thousands of participants to Union Square Park, became a riot. Social media posts of the event surfaced around the same time. Cenat was taken into police custody by the New York City Police Department (NYPD) during the riot and was charged with inciting a riot and unlawful assembly. He appeared in court on August 16 and August 18. His business partners at Any Means Possible apologized for the riot. Cenat would also apologize in a livestream on August 9. The incident led to discussion and debate about the influence of internet personalities.

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.

USS Recruit, also known as the Landship Recruit, was a wooden mockup of a dreadnought battleship constructed by the United States Navy in Manhattan in New York City, as a recruiting tool and training ship during the First World War. Commissioned as if it were a normal vessel of the U.S. Navy and manned by a crew of trainee sailors, Recruit was located in Union Square from 1917 until the end of the war. In 1920, with the reduced requirements for manning in the post-war Navy, Recruit was decommissioned and dismantled, having recruited 25,000 sailors into Navy service.