Irish Repertory Theatre

Proctor's Theatre, also known as Proctor's Twenty-Third Street Theatre, RKO Proctor's Twenty-Third Street Theatre and Keith & Proctor's Twenty-Third Street Theatre, was a theatre located in Chelsea, Manhattan at 141 West 23rd St. in-between Sixth Avenue and Seventh Avenue. It was built in 1889 by the theatrical impresario F. F. Proctor on the former site of Salmi Morse's Temple Theatre which was demolished in 1888. The theatre was designed by architect H. Edward Fickens and had a seating capacity of 1,717 people. The theater was used for both legitimate theatre and vaudeville entertainments before being purchased by RKO and becoming a movie theatre. A fire in 1937 forced the theatre to close permanently.

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.

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 O'Neill Building is a landmarked former department store, located at 655-671 Sixth Avenue between West 20th and 21st Streets in the Flatiron District neighborhood of Manhattan, New York City. The building was originally Hugh O'Neill's Dry Goods Store, and was designed by Mortimer C. Merritt in the neo-Grec style. It was built to four stories in two stages between 1887 and 1890, to allow the existing O'Neill store to continue operating during construction, with the addition of a fifth floor in 1895, created by raising the pediment. The gilded corner domes of this cast-iron-fronted building were restored c.2000.On the death of Hugh O'Neill in 1902, his heirs were unable to continue running the business, which was sold and merged in 1907 with the Adams Dry Goods Store immediately to the north at 675 Sixth Avenue. The combined business did not succeed and, like all the department stores in the Ladies' Mile, was gone by the advent of World War I. The building was converted to manufacturing lofts, and then back into offices around 1969. As of 2014, the building is owned by ElAd Properties, and was converted into condominiums in 2005. On Christmas Day 2012 the building suffered a partial collapse of its facade and was evacuated.The O'Neill Building is part of the Ladies' Mile Historic District, which was created by the New York City Landmarks Preservation Commission in 1989. In its designation report, the Commission wrote "Because of its architecture and history, the Hugh O'Neill Building is one of the department store buildings which give the Ladies Mile Historic District its special character."

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.

Red Door was a 2,000 SF event and music space located in the heart of Chelsea, New York City that remained private to the public for 37 years. Its name changed over the years, but always based on the colors of the front door (previous incarnations were Green Door and Purple Door). The venue attracted a wide array of celebrities and personalities in the music and entertainment world.

The 23rd Street station is a local station on the IRT Broadway–Seventh Avenue Line of the New York City Subway. Located at 23rd Street and Seventh Avenue in Chelsea, Manhattan, it is served by the 1 train at all times and by the 2 train during late nights. The station was built by the Interborough Rapid Transit Company (IRT) as part of the Dual Contracts with New York City, and opened on July 1, 1918. The station had its platforms extended in the 1960s, and was renovated in the 1990s.

The Church of the Holy Communion and Buildings are historic Episcopal church buildings at 656–662 Avenue of the Americas (Sixth Avenue) at West 20th Street in the Flatiron District of Manhattan, New York City. The church is a New York City landmark, designated in 1966, and was added to the National Register of Historic Places in 1980. It is located within New York City's Ladies' Mile Historic District.

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.

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.

23rd Street was a station on the demolished IRT Sixth Avenue Line in Manhattan, New York City. It had two tracks and two side platforms. It was served by trains from the IRT Sixth Avenue Line. This station opened on June 5, 1878 and closed on December 4, 1938. The next southbound stop was 18th Street. The next northbound stop was 28th Street. Two years later the rapid transit needs of the intersection were replaced by the underground 23rd Street IND subway station.