500 Fifth Avenue

Meinhard v. Salmon, 164 N.E. 545 (N.Y. 1928), is a widely cited case in which the New York Court of Appeals held that partners in a business owe fiduciary duties to one another where a business opportunity arises during the course of the partnership. The court holds that the fiduciary duty of communication was breached where a partner in a joint venture failed to inform his co-partner of a profitable opportunity that was offered by a third-party who was ignorant of the partnership. Furthermore, the duty of loyalty was breached where the partner appropriated to himself a benefit arising from his status as a partner without allowing his co-partner an opportunity to compete. This holding relates to the doctrine of corporate opportunity.

The Economic Cycle Research Institute (ECRI) based in New York City, is an independent institute formed in 1996 by Geoffrey H. Moore, Anirvan Banerji, and Lakshman Achuthan. It provides economic modeling, financial databases, economic forecasting, and market cycles services to investment managers, business executives, and government policymakers.

510 Fifth Avenue, originally the Manufacturers Trust Company Building, is a commercial building at the southwest corner of West 43rd Street and Fifth Avenue in Midtown Manhattan, New York City. Opened in 1954, it is the first bank building in the United States to be built in the International Style. Charles Evans Hughes III and Gordon Bunshaft of Skidmore, Owings & Merrill (SOM) designed the building, along with Roy O. Allen and project manager Patricia W. Swan. The interior was designed by Eleanor H. Le Maire, while Harry Bertoia was hired as an artist for some of the building's artwork. 510 Fifth Avenue was built as a bank for the Manufacturers Trust Company, whose president Horace C. Flanigan wanted the design to be inviting to customers. 510 Fifth Avenue contains four full stories, a penthouse, and a basement. Its facade is made largely of glass walls between mullions made of aluminum. Inside is a circular stainless steel door protecting the original bank vault, which was designed by Henry Dreyfuss. The second story is recessed from the facade, and the floor slabs of the upper stories are carried on four columns, giving the impression that they are floating. The building's height and design was influenced by a lease restriction that prohibited the construction of a taller building on a portion of the site. A smaller penthouse rises above the fourth story. 510 Fifth Avenue was commissioned by Manufacturers Trust in 1944; the original plan was designed by Walker & Gillette and canceled in 1948. Walker & Poor was hired in 1950 to modify the original proposal but were replaced with consulting architect SOM after Bunshaft convinced bank executives that a complete redesign would be cheaper. The building was instantly popular upon its opening, becoming Manufacturers Trust's busiest branch and a tourist attraction in itself. Manufacturers Trust's successor, Chase Bank, sold the building to Tahl-Propp Equities in 2000, and it was purchased by Vornado Realty Trust in 2010. After the Chase branch closed in late 2010, SOM renovated 510 Fifth Avenue and converted it into a commercial structure in 2012. 510 Fifth Avenue's design received critical acclaim upon its completion. Praise was focused particularly on its lightweight facade, ceiling lighting, and visible vault. The design inspired that of other bank buildings erected in the 1950s and 1960s. The building's facade was designated as an official landmark by the New York City Landmarks Preservation Commission (LPC) in 1997, and its interior was similarly designated in 2011, following controversy over the removal of one of Bertoia's artworks.

The Salmon Tower Building is a 31-story skyscraper located at 11 West 42nd Street and 20 West 43rd Street in Manhattan, New York City, near Bryant Park. It was designed by Albert J. Wilcox and finished in 1928. It was developed by a firm headed by Walter J. Salmon Sr. Directly to the west of the Salmon Tower Building is the former Aeolian Building, and to its east is 500 Fifth Avenue, also built by Salmon Sr.

The Century Association is a private social, arts, and dining club in New York City, founded in 1847. Its clubhouse is located at 7 West 43rd Street near Fifth Avenue in Midtown Manhattan. It is primarily a club for men and women with distinction in literature or the arts. The Century Association was founded by members of New York's Sketch Club; preceding clubs also included the National Academy of Design, the Bread and Cheese Club, and the Column. Traditionally a men's club, women first became active in club life in the early 1900s; the organization began admitting women as members in 1988. Named after the first 100 people proposed as members, the first meeting on January 13, 1847, created the club known as the Century; it was incorporated in 1857. It was first housed at 495 Broadway in Lower Manhattan; the club gradually moved uptown, leading to the club's construction of its current location in 1899. During the Civil War, it became headquarters to the U.S. Sanitary Commission. 134 Centurions served in World War I; 110 served in World War II. The clubhouse, a five-story Palazzo style building, was designed by McKim, Mead & White and built from 1889 to 1891. It became a New York City Landmark in 1967 and was added to the National Register of Historic Places in 1982. It was extensively renovated in the early 1990s, with a fifth floor and terrace constructed in 2009. Members of the club have included artists and writers William Cullen Bryant, Frederic Church, Asher B. Durand, John La Farge, Winslow Homer, Paul Manship, Augustus Saint-Gaudens, Louis Comfort Tiffany, John Quincy Adams Ward, and J. Alden Weir. Architect members have included Calvert Vaux, Carrère and Hastings, Frederick Law Olmsted, James Renwick Jr., McKim, Mead & White, and York and Sawyer. Members are known for other endeavors, including eight Presidents of the United States, ten US Supreme Court justices, 43 Members of the Cabinet, 29 Nobel Prize laureates, members of the Rockefeller, Vanderbilt, Roosevelt, Jay, Schieffelin and Astor families, and noted individuals like Dan Beard, J. P. Morgan, Samuel Morse, and Anson Phelps Stokes.

New York City, the most populous city in the United States, is home to more than 7,000 completed high-rise buildings of at least 115 feet (35 m), of which at least 102 are taller than 650 feet (198 m). The tallest building in New York is One World Trade Center, which rises 1,776 feet (541 m). The 104-story skyscraper also stands as the tallest building in the United States, the tallest building in the Western Hemisphere, and the seventh-tallest building in the world. At 1,550 feet (472 m), Central Park Tower is the second-tallest completed building in the city. It has the highest roof of any building outside Asia, and is the tallest residential building in the world. The third-tallest completed building in the city is 111 West 57th Street. Rising to 1,428 feet (435 m), it is the world's most slender skyscraper. The fourth-tallest is One Vanderbilt. At 1,401 feet (427 m), it is the tallest office building in Midtown. The fifth-tallest is 432 Park Avenue at 1,397 feet (426 m). At 1,250 feet (381 m), the 102-story Empire State Building in Midtown Manhattan, which was finished in 1931, stood as the tallest building in the world from its completion until 1970, when construction on the 1,368-foot (417 m) North Tower of the original World Trade Center surpassed it. It is the tenth-tallest building in the United States, and rises to a pinnacle of 1,454 feet (443 m) including its antenna. The North Tower (the original One World Trade Center), along with its twin the South Tower (the first Two World Trade Center), which was six feet shorter, held this title only briefly as they were both surpassed by construction of the 110-story Willis Tower in Chicago in 1973. The Twin Towers remained the tallest buildings in New York City until they were destroyed in 2001 during the September 11 attacks, leaving the Empire State Building again as the city's tallest building. The new One World Trade Center began construction in 2006; in April 2012 it surpassed the Empire State Building to become the city's tallest. Upon its topping out in May 2013, the 1,776-foot (541 m) One World Trade Center surpassed the Willis Tower to become the tallest building in the United States and the Western Hemisphere. One World Trade Center is part of the redevelopment of the World Trade Center, which also includes the 1,079-foot (329 m) 3 World Trade Center, the 977-foot (298 m) 4 World Trade Center, the 743-foot (226 m) 7 World Trade Center, the approved 900-foot (274 m) 5 World Trade Center, and one partly constructed on-hold building: the 1,350-foot (411 m) 2 World Trade Center. The majority of skyscrapers in New York City are concentrated in Midtown and Downtown Manhattan, although other neighborhoods of Manhattan and the boroughs of Brooklyn, Queens, and the Bronx also contain some high-rises. As of March 2024, there were 317 completed skyscrapers that rose at least 492 feet (150 m) in height, more than any other city in the Western Hemisphere, and third most in the world exceeded only by Hong Kong and Shenzhen.

520 Fifth Avenue is a mixed-use supertall building under construction in New York City. The building occupies the former site of three structures. Rabina is developing the building, and architectural firm Kohn Pedersen Fox designed the structure and serves as architect of record.

The Princeton Club of New York was a private club located in Midtown Manhattan, New York City, New York founded in 1866 as the Princeton Alumni Association of New York. It reorganized to its current namesake in 1886. Its membership is composed of alumni and faculty of Princeton University, as well as 15 other affiliated schools. In 2021, the club defaulted on its mortgage debt, and its clubhouse is in the process of being sold to the highest bidder.

The Latting Observatory was a wooden tower in New York City built as part of the 1853 Exhibition of the Industry of All Nations, adjoining the New York Crystal Palace. It was located on the North side of 42nd Street between Fifth Avenue and Sixth Avenue across the street from the site of present-day Bryant Park. Conceived by Waring Latting and designed by architect William Naugle, the observatory was an octagonally-based, iron-braced wooden tower 315 feet (96 m) high adjoining the Crystal Palace, with landings at three levels on the structure, allowing visitors to see east into Queens, south into Staten Island, and west into New Jersey. The tower, taller than the spire of Trinity Church at 290 feet (88 m), was the tallest structure in New York City from the time it was constructed in 1853 until it was shortened in 1855. The tower's base was a 75-foot (23 m) square, tapering to a top of 6 to 8 feet (1.8 to 2.4 m). It could handle up to 1,500 people at a time. It burned down in 1856. The Latting Observatory was an inspiration for the Eiffel Tower.

The New York Public Library (NYPL) is a public library system in New York City. With nearly 53 million items and 92 locations, the New York Public Library is the second largest public library in the United States (behind the Library of Congress) and the fourth largest in the world. It is a private, non-governmental, independently managed, nonprofit corporation operating with both private and public financing.The library has branches in the boroughs of the Bronx, Manhattan, and Staten Island and affiliations with academic and professional libraries in the New York metropolitan area. The city's other two boroughs, Brooklyn and Queens, are not served by the New York Public Library system, but rather by their respective borough library systems: the Brooklyn Public Library and the Queens Public Library. The branch libraries are open to the general public and consist of circulating libraries. The New York Public Library also has four research libraries, which are also open to the general public. The library, officially chartered as The New York Public Library, Astor, Lenox and Tilden Foundations, was developed in the 19th century, founded from an amalgamation of grass-roots libraries and social libraries of bibliophiles and the wealthy, aided by the philanthropy of the wealthiest Americans of their age. The "New York Public Library" name may also refer to its Main Branch, which is easily recognizable by its lion statues named Patience and Fortitude that sit either side of the entrance. The branch was declared a National Historic Landmark in 1965, listed on the National Register of Historic Places in 1966, and designated a New York City Landmark in 1967.

The Stephen A. Schwarzman Building, commonly known as the Main Branch or the New York Public Library, is the flagship building in the New York Public Library system in the Midtown Manhattan neighborhood of New York City. The branch, one of four research libraries in the library system, contains nine separate divisions. The structure contains four stories open to the public. The main entrance steps are at Fifth Avenue at its intersection with East 41st Street. As of 2015, the branch contains an estimated 2.5 million volumes in its stacks. The building was declared a National Historic Landmark, a National Register of Historic Places site, and a New York City designated landmark in the 1960s. The Main Branch was built after the New York Public Library was formed as a combination of two libraries in the late 1890s. The site, along Fifth Avenue between 40th and 42nd Streets, is located directly east of Bryant Park, on the site of the Croton Reservoir. The architectural firm Carrère and Hastings constructed the structure in the Beaux-Arts style, and the structure opened on May 23, 1911. The marble facade of the building contains ornate detailing, and the Fifth Avenue entrance is flanked by a pair of stone lions that serve as the library's icon. The interior of the building contains the Main Reading Room, a space measuring 78 by 297 feet (24 by 91 m) with a 52-foot-high (16 m) ceiling; a Public Catalog Room; and various reading rooms, offices, and art exhibitions. The Main Branch became popular after its opening, and saw 4 million annual visitors by the 1920s. It formerly contained a circulating library, though the circulating division of the Main Branch moved to the nearby Mid-Manhattan Library in 1970. Additional space for the library's stacks was constructed under adjacent Bryant Park in 1991, and the branch's Main Reading Room was restored in 1998. A major restoration from 2007 to 2011 was underwritten by a $100 million gift from philanthropist Stephen A. Schwarzman, for whom the branch was subsequently renamed. Since 2018, the branch has been undergoing an additional expansion. The Main Branch has been featured in many television shows and films.

The Aeolian Building is a skyscraper in Midtown Manhattan in New York City, at 29–33 West 42nd Street and 34 West 43rd Street, just north of Bryant Park. The 1912 building was the fourth headquarters of the Aeolian Company, which manufactured pianos and other musical instruments. the 18-story building contained the 1,100-seat Aeolian Hall (1912–1927), a top concert hall of its day. The building stands next to the Grace Building.