General Society of Mechanics and Tradesmen of the City of New York

The John M. Mossman Lock Collection is housed at the General Society of Mechanics and Tradesmen of the City of New York building, located at 20 West 44th Street in midtown Manhattan, which is listed on the National Register of Historic Places. The museum houses one of the largest collections of bank and vault locks in the world, with more than 370 locks, keys and tools dating from 4000 BC to the modern 20th-century. Egyptian wooden-pin locks, Chinese padlocks, American time locks, etc., are all displayed in lighted glass cases on the second floor of the General Society. Alongside the cases are studded trunks, with cleverly concealed keyholes, once used by bankers. Many of the examples are unique, made-to-order locks that were not produced in commercial quantities and nearly every lock has protected millions in money and securities. To augment the lock collection. Mr. Mossman donated his notes and scrapbooks, known as the "Mossman Papers", which have proven to be a valuable resource for the study of locks. The Lure of the Lock was published in 1928 and describes each lock in the collection. This publication, as well as a photo CD of the collection, are available from the Society. Collections of various antebellum curios, rare books, prints, flags, clocks and medals have also been donated by friends and members. Admission is $10 for viewing this museum collection, which is open to the public.

The Mansfield Hotel is a residential hotel at 12 West 44th Street in the Midtown Manhattan neighborhood of New York City. Designed in the Beaux-Arts style by the architectural firm of Renwick, Aspinwall & Owen, the 12-story building was completed in 1902 as an apartment hotel. The Mansfield was developed by onetime Vermont governor John G. McCullough and lawyer Frederick B. Jennings. The building is a New York City designated landmark. The brick-and-stone facade is arranged in an "H" shape and is divided vertically into three bays. The first two stories of the Mansfield's facade are clad with rusticated limestone blocks, while the upper stories are clad with red brick; the top two floors are placed within a mansard roof. The hotel contains a large lobby with coffered ceiling, as well as a room with a skylight that formerly served as a library. The Mansfield contained 129 or 131 rooms on its upper stories by the late 1990s; these rooms were converted to co-living spaces in 2021. McCullough and Jennings filed plans with the New York City Department of Buildings in June 1901, and the hotel opened the next year; the men continued to own the hotel until 1940. The Mansfield became popular among theatrical and artistic personalities, as well as businesspeople, during the early 20th century. The hotel was renovated in 1935, when a nightclub was added next to the lobby, and again in the 1960s. Bernard Goldberg, who acquired the hotel in 1995, renovated it extensively. The Mansfield was then resold to Credit Suisse First Boston in 1998, then to Brad Reiss and John Yoon in 2004. Canadian firm Harrington Housing acquired the Mansfield Hotel in 2021 and renovated the rooms into co-living spaces.

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.

Phoenix Art Institute, originally located at 350 Madison Avenue in New York, New York, was an educational institution co-founded in 1925 by Franklin Booth with Lauros M. Phoenix. In 1944, it merged with the New York School of Applied Design for Women, becoming the New York Phoenix School of Design. In 1974, the New York Phoenix School of Design merged with the Pratt Institute to form the Pratt-Phoenix School of Design

Sofitel New York is a boutique hotel on West 44th Street in Midtown Manhattan in New York City, owned and managed by the Sofitel corporation. It lies about 200 metres (660 ft) north of Bryant Park and New York Public Library and next to the New York Yacht Club. The hotel is inspired by French traditions in furnishings and theme, and the hotel staff are bilingual in French and English. Completed in 2000, the 109-metre-tall (358 ft), 30-floor, 398-guest room limestone and glass building was awarded the 2000 Emporis Skyscraper Award.

30 West 44th Street (formerly the Yale Club of New York City Building, United States Maritime Building, and Army Reserves Building; also the Penn Club of New York Building) is the clubhouse of the Penn Club of New York in the Midtown Manhattan neighborhood of New York City. Designed by architecture firm Tracy and Swartwout in the Beaux-Arts style, the building opened in 1901 as the Yale Club of New York City's clubhouse. The building is part of Clubhouse Row, a concentration of clubhouses on 44th Street between Fifth and Sixth Avenues, and is a New York City designated landmark. The structure was originally 11 stories tall, but it was expanded to 14 stories in the early 1990s. The ornately decorated facade on 44th Street is made of brick, Indiana limestone, and terracotta; the first two stories are clad with rusticated limestone blocks, while the upper stories are largely clad with brick and terracotta. The mansard roof on the 11th story is topped by a three-story brick-and-limestone penthouse. When the building served as the Yale Club's clubhouse, it had club rooms on the lower floors, bedrooms in the intermediate stories, and dining rooms on the highest stories. The interiors have been modified significantly over the years. The modern clubhouse contains club rooms, bedrooms, and dining rooms for the Penn Club. The Yale Club was founded in 1897 and, following rapid increases in its membership, acquired the 44th Street site in early 1900. The Yale Club Building officially opened on May 1, 1901, but it became overcrowded within a decade, prompting the club to relocate to 50 Vanderbilt Avenue in 1915. The building was next occupied by Delta Kappa Epsilon from 1917 to 1925 and by Army & Navy Club of America from 1925 to 1933. After standing vacant for a decade, the building was acquired by the federal government of the United States in 1943. The building contained offices for the United States Maritime Service during World War II, and it housed the Organized Reserve after 1948. The federal government sold 30 West 44th Street in 1971 to Touro College, which sold the building to the University of Pennsylvania in 1989. Penn hired David P. Helpern to renovate the building and add three stories for the Penn Club, and the building reopened in June 1994. The Columbia University Club of New York also uses the clubhouse under a reciprocity agreement with the Penn Club.

The Harvard Club of New York City, commonly called The Harvard Club, is a private social club located in Midtown Manhattan, New York City. Its membership is limited to alumni, faculty, and boardmembers of Harvard University. Incorporated in 1887, it is housed in adjoining lots at 27 West 44th Street and 35 West 44th Street. The original wing, built in 1894, was designed in red brick neo-Georgian style by Charles Follen McKim of McKim, Mead & White.

The CUNY School of Labor and Urban Studies (also known as CUNY SLU) is a public undergraduate, graduate, and professional school in New York City associated with the City University of New York system. Founded in 2018 as an outgrowth of the Joseph S. Murphy Institute for Worker Education and Labor Studies, the Murphy Institute is now one of incorporated programs at the School of Labor and Urban Studies, which provides undergraduate and graduate degrees in Labor Studies and Urban Studies, as well as certificate programs and workforce development for members of labor unions. It publishes the journal New Labor Forum.

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.

The New York Yacht Club Building is a seven-story Beaux-Arts clubhouse at 37 West 44th Street in the Midtown Manhattan neighborhood of New York City. Opened in 1901, the building was designed by architect Whitney Warren of Warren and Wetmore as the sixth clubhouse of the New York Yacht Club (NYYC). The clubhouse is part of Clubhouse Row, a concentration of clubhouses on 44th Street between Fifth and Sixth Avenues. The building is a New York City designated landmark and is listed on the National Register of Historic Places as a National Historic Landmark. The building has an ornately decorated facade on 44th Street; its first four stories are clad with stone and are asymmetrically divided into four bays. The easternmost bay contains the entrance, while the western three bays contain double-height arches, ornamented with bay windows that resemble ships. The upper stories are within a mansard roof that is slightly set back. Inside is a double-height entrance hall, visitors' room, and various other spaces in the basement and at ground level. On the second story is a double-height model room, measuring 45 by 100 feet (14 by 30 m) and containing over a thousand ship models. A private library/chartroom, dining rooms, and offices occupy the fourth story, and there are bedrooms on the remaining floors. Many of the facade and interior decorations carry a maritime theme. The NYYC was founded in 1844 and became known for holding the America's Cup trophy. By the 1890s, overcrowding at the club's previous headquarters prompted the NYYC to consider developing a new clubhouse. J. P. Morgan bought land for the new clubhouse on 44th Street in October 1898, and Warren & Wetmore won an architectural design competition for the building that December. The clubhouse formally opened on January 19, 1901, and has hosted the club's annual meetings and events since then. The clubhouse remained mostly unchanged during the 20th century, although some rooms were converted to different uses. The NYYC renovated the interior in the 1980s and restored the facade in 1992. The interior was renovated again for the clubhouse's centennial in 2001.

The New York Yacht Club (NYYC) is a private social club and yacht club based in New York City and Newport, Rhode Island. It was founded in 1844 by nine prominent sportsmen. The members have contributed to the sport of yachting and yacht design. As of 2001, the organization was reported to have about 3,000 members. Membership in the club is by invitation only. Its officers include a commodore, vice-commodore, rear-commodore, secretary and treasurer. The America's Cup trophy was won by members in 1851 and held by the NYYC until 1983. The NYYC successfully defended the trophy twenty-four times in a row before being defeated by the Royal Perth Yacht Club, represented by the yacht Australia II. The NYYC's reign was the longest winning streak as measured by years in the history of all sports.The NYYC has entered 2021 America's Cup under the syndicate name American Magic.

The Webster Hotel is located in New York City. The building was built in 1902 and was added to the National Register of Historic Places on September 7, 1984. It was designed by the architectural firm of Tracy and Swartwout, and built in the Classical Revival style. It functions today as The Midtown Executive Club, it is also marketed as a hotel to the general public under the name Club Quarters, Midtown.