Racquet and Tennis Club

Park Avenue Plaza is an office building in the New York City borough of Manhattan, occupying the block bounded by 52nd Street, 53rd Street, Park Avenue and Madison Avenue, adjacent to the Racquet and Tennis Club building. Park Avenue Plaza was designed by the architecture firm of Skidmore, Owings & Merrill, and was constructed from 1979 to 1981. The building stands at 574 feet (175 m), with 44 floors above ground, and has over one million square feet of space available. As of 2018, ownership of the building is divided between Fisher Brothers and Chinese real estate magnate Zhang Xin's SOHO China.

The CBS Studio Building is a seven-story office building at 49 East 52nd Street in Midtown Manhattan, New York City. It has had various uses at different times, including serving as a Vanderbilt family guest house, the first graduate school of the Juilliard School, CBS Radio studios, and Columbia Records studio. It is currently owned by the Fisher Brothers, who converted it to an office building in conjunction with construction of the 45-story Park Avenue Plaza to its east.

The Mrs. O. H. P. Belmont House was a mansion located at 477 Madison Avenue on the northeast corner of 51st Street in Midtown Manhattan, New York City, New York, United States. The building was demolished in 1951.

The National Committee on American Foreign Policy (NCAFP) is an American nonprofit, nonpartisan activist organization dedicated to the resolution of conflicts that threaten United States interests. Founded in 1974 by Hans Morgenthau, the organization works to identify, articulate, and advance U.S. foreign-policy interests within the framework of political realism.

The DuMont Building (also known as 515 Madison Avenue) is a 532-foot (162 m) high, 42-story building located at 53rd Street and Madison Avenue in Manhattan.The building was built in art deco and neo-gothic style by John H. Carpenter and designed by his brother, architect J.E.R. Carpenter who also designed Lincoln Tower as well as nearly 125 buildings along Fifth Avenue and Park Avenue.

The Hotel Elysée is a New York City hotel on 60 East 54th Street between Madison and Park Avenues in Midtown Manhattan. The hotel was founded in 1926 as a European-style hotel for the carriage trade by Swiss-born Max Haering.

345 Park Avenue is a 634-foot (193 m) skyscraper in the Midtown Manhattan neighborhood of New York City. It occupies an entire city block bounded by Park Avenue, Lexington Avenue, 51st Street, and 52nd Street. Completed in 1969, with 44 floors, the building was designed by Emery Roth & Sons. It is near the Racquet and Tennis Club and Park Avenue Plaza to the northeast; the Seagram Building to the north; 599 Lexington Avenue to the northeast; and St. Bartholomew's Episcopal Church and the General Electric Building to the south. It is built on the site of the Hotel Ambassador, which had opened in 1921. It was sold to Sheraton Hotels in 1958 and renamed the Sheraton-East. It was demolished in 1966. Exteriors of 345 Park Avenue were used as the headquarters of CSC and Continental Corp. in the Aaron Sorkin series Sports Night from 1998 to 2000.

The Omni Berkshire Place hotel is located at 21 East 52nd Street, near Madison Avenue, in Midtown Manhattan in New York City. It is owned and operated by Omni Hotels & Resorts.

The Seagram Building is a skyscraper at 375 Park Avenue, between 52nd and 53rd Streets, in the Midtown Manhattan neighborhood of New York City. Designed by Ludwig Mies van der Rohe, Philip Johnson, Ely Jacques Kahn, and Robert Allan Jacobs, the building measures 515 feet (157 m) tall with 38 stories and a public plaza. The International Style building, completed in 1958, initially served as the headquarters of the Seagram Company, a Canadian distiller. Phyllis Lambert, daughter of Seagram CEO Samuel Bronfman, heavily influenced the Seagram Building's design, an example of the functionalist aesthetic and a prominent instance of corporate modern architecture. A glass curtain wall with vertical mullions of bronze and horizontal spandrels made of Muntz metal form the building's exterior. The pink granite plaza facing Park Avenue contains two fountains. Behind the plaza is a tall elevator lobby with a similar design to the plaza. The lowest stories originally contained the Four Seasons and Brasserie restaurants, which were replaced respectively by the Grill and Pool restaurant and the Lobster Club. The upper stories contain office spaces of modular construction. Seagram revealed plans for the building in July 1954, when it announced construction of its headquarters on the up-and-coming commercial strip of Park Avenue. After Lambert objected to Pereira & Luckman's original design, Mies was selected as the architect that November. The building's construction began in late 1955 and finished in 1958, although the official certificate of occupancy was not granted until 1959. The Teachers Insurance and Annuity Association of America purchased the building in 1979, and it remained Seagram's headquarters until 2001. Since 2000, Aby Rosen's RFR Holding LLC has owned the Seagram Building. Upon opening, the Seagram Building was widely praised for its architecture. Described in The New York Times as one of "New York's most copied buildings", the Seagram Building has inspired the designs of other structures around the world. Within New York City, the Seagram Building helped influence the 1961 Zoning Resolution, a zoning ordinance that allowed developers to construct additional floor area in exchange for including plazas outside their buildings. In 1989, the New York City Landmarks Preservation Commission designated the Seagram Building's exterior, lobby, and The Four Seasons Restaurant as official city landmarks. The building was added to the National Register of Historic Places in 2006.

St. Bartholomew's Church, commonly called St. Bart's, is a historic Episcopal parish founded in January 1835, and located on the east side of Park Avenue between 50th and 51st Street in Midtown Manhattan, in New York City. In 2018, the church celebrated the centennial of its first service in its Park Avenue home.In 2020, it reported 2,196 members, average attendance of 386, and $2,791,353 in plate and pledge income. On October 31, 2016, the St. Bartholomew's Church and Community House complex was designated a National Historic Landmark, for its significance as an important example of early 20th-century ecclesiastical architecture designed by Bertram Goodhue.

The Weylin Hotel was a hotel at 527 - 531 Madison Avenue and 40 - 54 East 54th Street in New York City. It was on the southeast corner of 54th Street. The structure was sixteen stories tall and opened in March 1921. The building fronted sixty-one feet on Madison Avenue and one hundred forty-eight feet on 54th Street. It contained 125,000 square feet (11,600 m2) of space.

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.