23rd Street station (IRT Sixth Avenue Line)

23rd Street is a station on the PATH system. Located at the intersection of 23rd Street and Sixth Avenue (Avenue of the Americas) in the Chelsea neighborhood of Manhattan, New York City, it is served by the Hoboken–33rd Street and Journal Square–33rd Street lines on weekdays, and by the Journal Square–33rd Street (via Hoboken) line on weekends.

The 23rd Street station is a local station on the IND Sixth Avenue Line of the New York City Subway, located at the intersection of 23rd Street and Sixth Avenue (Avenue of the Americas) in Manhattan. It is served by the F train at all times, the M train during weekdays, and by the train during rush hours in the peak direction. This station and 14th Street are the only two local stations on the Sixth Avenue Line. The 23rd Street station of the IND Sixth Avenue Line shares entrances with the 23rd Street station of the PATH, which is located in between this station's two platforms.

Booth's Theatre was a theatre in New York built by actor Edwin Booth. Located on the southeast corner of 23rd Street and Sixth Avenue, Booth's Theatre opened on February 3, 1869. The theatre featured a grand vestibule with Italian marble floors and a large statue of Edwin Booth's father, the Shakespearean actor, Junius Brutus Booth by the sculptor Thomas Ridgeway Gould. The auditorium was similarly elaborate in its decor, and featured a large chandelier, as well as a stage that incorporated the most modern machinery in use at the time, such as hydraulic rams to raise and lower scenery, and stage lights that could be completely extinguished during the performance, a first in the United States. Despite the appearances by important talent of the times, Booth could not make the theatre a financially viable enterprise. It was sold in December 1881, and was converted into McCreery & Co. department store until 1965, when it was demolished to make room for a parking lot.

Masonic Hall in New York City is the headquarters of the Grand Lodge of Free and Accepted Masons of the State of New York. The building was constructed to replace a previous Masonic Hall (built in 1875 and designed by Napoleon LeBrun), that stood on the same site. The current building was designed by Harry P. Knowles, one of the architects of the New York City Center. It actually consists of two interconnected buildings, one (constructed in 1913) on the corner of 23rd St and 6th Avenue, and the other (constructed in 1907) facing 24th St. The 23rd St. building is primarily a commercial office building, with rents generating funds for the Grand Lodge's charitable activities and the upkeep of the 24th Street building. The 24th St. building consists primarily of lodge meeting rooms, including the 1200-seat Grand Lodge Room, all elaborately ornamented. The Hall's interior was restored in 1986-96 by Felix Chavez, Fine Art Decorating.

Tekserve was an American consumer electronics and information technology consulting business based in the Flatiron District of Manhattan, New York City. Founded in 1987 as a side business by Macintosh-using engineers designing computer-controlled institutional electronics, Tekserve grew from a small back-office Macintosh repair shop to become the largest single-location Apple Specialist and Premium Service Provider in the United States.The store announced its closure on August 15, 2016, and the location subsequently became home to the Poster House museum.

New York Zen Center for Contemplative Care is a Soto Zen practice center in Manhattan. It was founded in 2007 by Zen teachers and monks Koshin Paley Ellison and Robert Chodo Campbell. In addition to Soto Zen Buddhist practice and study, NYZC offers training in end-of-life care for medical professionals, carepartners, and those who are dying. Since the Zen center was founded, the priests and their students have worked with over 150,000 people. New York Zen Center for Contemplative Care offers the first fully-accredited Zen Buddhist Clinical Pastoral Education program in the United States.

The National Committee on United States China Relations (NCUSCR) is a nonprofit organization and advisory body founded in 1966 to encourage understanding and cooperation between the United States and China. Since 1966, the committee has conducted exchanges, educational and policy activities in areas of politics and security, education, governance and civil society, economic cooperation, media and transnational issues, addressing these topics with respect to Mainland China, Hong Kong and Taiwan. National Committee exchanges and conferences bring together leaders in a range of fields from both sides of the Pacific, and promotes dialogue, engagement, and decision-making across a range of disciplines. The committee's membership consists of American citizens, corporations and professional firms representing many viewpoints, but share the belief that productive U.S.-China relations require ongoing public education, face-to-face contact and exchange of ideas. The committee's Chinese name is (simplified Chinese: 美中关系全国委员会; traditional Chinese: 美中關係全國委員會; pinyin: Měi zhōng guānxì quánguó wěiyuánhuì).

The Livingston Library in New York City is one of relatively few large libraries of Freemasonry materials.

Billy's Topless was a topless bar in the Chelsea neighborhood of New York City. Operating from 1970 to 2001, it was considered for many years an informal city landmark.

Poster House is the first museum in the United States dedicated exclusively to posters. The museum is located in Chelsea, New York City, on 23rd Street between and Sixth Avenue and Seventh Avenue. The museum opened to the public on June 20, 2019.

The Parish of St. Vincent de Paul was a national parish of the Roman Catholic Archdiocese of New York. Founded in 1841, it was dedicated to serve the needs of the French-speaking population of the city. The parish church was located at 123 West 23rd Street, New York, New York. The parish was closed in January 2013.

St. John's Lodge No. 1 A.Y.M. in New York City, United States, is the oldest operating Masonic Lodge under the jurisdiction of the Grand Lodge of New York Free and Accepted Masons. The lodge was originally warranted as St. John's Lodge No. 2 on December 7, 1757 by George Harison, Esq. of the Provincial Grand Lodge of New York under the Grand Lodge of England (Moderns).