Restaurant Aquavit

Park Avenue Tower (also 65 East 55th Street) is a building on Park Avenue, between 55th Street and 56th Street, in Midtown Manhattan, New York City. The office building developed by Park Tower Realty opened in 1986 and has a height of 561 feet (171 metres). Park Avenue Tower has 36 floors, which can be reached with seventeen elevators. Designed by Murphy/Jahn Architects in postmodern style, Park Avenue Tower is made of stone, steel and glass. The floor plan of the building is a square with flattened corners and the tower narrows as it increases in height. There is a pyramid-shaped structure on the roof of the building that is not visible from the street.In front of the Park Avenue Tower main entrance on 55th Street is a Privately Owned Public Space with six polished granite planters. The building can be accessed through four entrances, one on 56th Street and three on 55th Street. The entrance on 56th Street and the middle entrance on 55th Street lead to the multi-story lobby. The walls of the lobby are made of granite and marble. The east entrance on 55th Street used to lead to the office of law firm Paul Hastings, which had an area of 23,500 m2 (252,951.9 sq ft) and was spread over sixteen floors., though Paul Hastings has since relocated to the MetLife Building. The fourth entrance leads to Restaurant Aquavit, a restaurant with two Michelin stars.

The Friars Club is a private club in New York City. Famous for its risqué roasts, the club's membership is composed mostly of comedians and other celebrities. Founded in 1904, it is located at 57 East 55th Street, between Park Avenue and Madison Avenue, in the historic Martin Erdmann House (now known as the Monastery).

The Hoffman Auto Showroom was an automobile dealership at 430 Park Avenue, New York City. Designed by architect Frank Lloyd Wright for notable European importer Max Hoffman in 1954, the glass and steel 3,600-square-foot (330 m2) space was located on the ground floor of an office tower located between East 55th and 56th Streets. It was dominated by a sloping floor capable of displaying up to five automobiles. Hoffman, the son of a Vienna Rolls-Royce dealer, had intended to use it for his Jaguar dealership. However, by its completion he had moved on to Mercedes Benz and a large model of a leaping jaguar had to be sent back to Coventry.In early April 2013, the building's owners, Midwood Investment & Management and Oestreicher Properties, demolished the showroom to make way for a TD Bank branch office.

The Camille and Henry Dreyfus Foundation is a New York City-based foundation founded in 1946 by chemist and investor Camille Dreyfus in honour of his brother, Henry Dreyfus. The two men invented the acetate yarn Celanese, and Henry Dreyfus was founder and chairman of British Celanese, parent of the Celanese Corporation of America.In 1971, the foundation sold a significant part of its holdings in the Celanese company.The foundation makes grants and awards prizes in support of chemistry research and education. These prizes include the Dreyfus Prize in the Chemical Sciences, Camille Dreyfus Teacher-Scholar Awards, Henry Dreyfus Teacher-Scholar Awards, Machine Learning in the Chemical Sciences and Engineering, Jean Dreyfus Lectureship for Undergraduate Institutions. The foundation also sponsors two awards through the American Chemical Society: the ACS Award for Encouraging Women into Careers in the Chemical Sciences, and the ACS Award for Encouraging Disadvantaged Students into Careers in the Chemical Sciences.

The Drake Hotel was a hotel at 440 Park Avenue and 56th Street, in Midtown Manhattan, New York City. Built in 1926 by Bing & Bing, it contained 495 rooms across 21 floors. It was sold in 2006 and demolished to make way for a residential skyscraper called 432 Park Avenue.

432 Park Avenue is a residential skyscraper at 57th Street and Park Avenue in Midtown Manhattan in New York City, overlooking Central Park. The 1,396-foot-tall (425.5 m) tower was developed by CIM Group and Harry B. Macklowe and designed by Rafael Viñoly. A part of Billionaires' Row, 432 Park Avenue has some of the most expensive residences in the city, with the median unit selling for tens of millions of dollars. At the time of its completion, 432 Park Avenue was the third-tallest building in the United States and the tallest residential building in the world. As of 2022, it is the sixth-tallest building in the United States, the fifth-tallest building in New York City, and the third-tallest residential building in the world. 432 Park Avenue has 84 numbered stories and a mezzanine above ground. The tower's exterior is a lattice of poured-in-place concrete made from white Portland cement. The tower is segmented into 12-story blocks separated by open double-story mechanical spaces that allow wind gusts to pass through the building. It features 125 condominiums and amenities such as a private restaurant for residents. The skyscraper has received mixed reviews from both professionals and the public, with commentary about both its slenderness and its symbolism as a residence for the ultra-wealthy. 432 Park Avenue is located on the site of the former Drake Hotel, which was sold to Macklowe in 2006. The project faced delays for five years because of lack of financing as well as difficulties in acquiring the properties on the site. Construction plans were approved for 432 Park Avenue in 2011 and excavations began the next year. Sales within 432 Park Avenue were launched in 2013; the building topped out during October 2014 and was officially completed in 2015. After the building's completion, residents complained of mechanical and structural problems, leading to a lawsuit in late 2021.

Four Twenty Five is a restaurant in Midtown Manhattan, New York City. It opened in December 2023 and is located in 425 Park Avenue.

425 Park Avenue is an office building in New York City being redeveloped by L&L Holding and GreenOak Real Estate, with a design by architectural firm Foster + Partners. Work on the new structure began in 2016, and the building received a temporary certificate of occupancy in 2021.

The Bignou Gallery was a New York City gallery located in Midtown Manhattan. It was a branch of the Bignou Gallery in Paris. The Bignou Gallery exhibited works by major European and American artists including Paul Gauguin, Georges Gimel, Henri Matisse, Jean Lurçat, and Amedeo Modigliani.

450 Park Avenue (also known as Franklin National Bank Building) is an office building on Park Avenue in Midtown Manhattan in New York City. The building has 33 floors and is 390 feet (120 m) tall. 450 Park Avenue has a steel skeleton with concrete floors. The exterior is dominated by black granite and glass. The building was designed by Emery Roth & Sons and developed by Peter Sharp. Adjacent to the building is a public plaza, a privately owned public space, with benches.

Lever House is a glass-box skyscraper at 390 Park Avenue in the Midtown Manhattan neighborhood of New York City. The building was designed in the International Style by Gordon Bunshaft and Natalie de Blois of Skidmore, Owings & Merrill (SOM) as the headquarters of soap company Lever Brothers, a subsidiary of Unilever. Constructed from 1950 to 1952, it was the second curtain wall skyscraper in New York City after the United Nations Secretariat Building. The 307-foot-tall (94 m) building contains 21 office stories topped by a triple-height mechanical section. The ground story contains a courtyard and public space, while the second story overhangs the plaza on a set of columns. The remaining stories are designed as a slab occupying the northern one-quarter of the site. The slab design was chosen to conform with the city's 1916 Zoning Resolution while avoiding the need for setbacks, which had been included in previous skyscrapers built under the ordinance. Lever House contains about 260,000 square feet (24,000 m2) of interior space, much less than in comparable office buildings. The construction of Lever House changed Park Avenue in Midtown from an avenue with masonry apartment buildings to one with International-style office buildings. The building's design was also influential internationally, being copied by several other structures around the world. Although Lever House was intended solely for Lever Brothers' use, its small size resulted in proposals to redevelop the site with a larger skyscraper. Following one such proposal, the building was designated a New York City Landmark in 1982 and was added to the National Register of Historic Places in 1983. Unilever moved most of its offices out of Lever House in 1997 and it was subsequently renovated by Aby Rosen's RFR Realty. Following the renovation, Lever House has been used as a standard office building with multiple tenants.

550 Madison Avenue (formerly known as the Sony Tower, Sony Plaza, and AT&T Building) is a postmodern skyscraper at Madison Avenue between 55th and 56th Streets in the Midtown Manhattan neighborhood of New York City. Designed by Philip Johnson and John Burgee with associate architect Simmons Architects, the building was completed in 1984 as the headquarters of AT&T and later became the American headquarters of Sony. The building consists of a 647-foot-tall (197-meter), 37-story office tower with a facade made of pink granite. It originally had a four-story granite annex to the west, which was demolished and replaced with a shorter annex in 2020. At the base of the building is a large entrance arch facing east toward Madison Avenue, flanked by arcades with smaller flat arches. A pedestrian atrium, connecting 55th and 56th Streets midblock, was also included in the design, which enabled the building to rise higher without the use of setbacks. The ground-level lobby is surrounded by retail shops, which were originally an open arcade. The office stories are accessed from a sky lobby above the base. Atop the building is a broken pediment with a circular opening. The building has received much attention ever since its design was first announced in March 1978. The AT&T Building at 550 Madison Avenue was intended to replace 195 Broadway, the company's previous headquarters in Lower Manhattan. Following the breakup of the Bell System in 1982, near the building's completion, AT&T spun off its subsidiary companies. As a result, AT&T never occupied the entire building as it had originally intended. Sony leased the building in 1991, substantially renovated the base and interior, and acquired the structure from AT&T in 2002. Sony sold the building to the Chetrit Group in 2013 and leased back its offices there for three years. In 2016, the Olayan Group and Chelsfield purchased 550 Madison Avenue with plans to renovate it. 550 Madison Avenue was designated a city landmark by the New York City Landmarks Preservation Commission in 2018.