Bloomingdale Insane Asylum

Columbia University in New York City has an extensive tunnel system underneath its Morningside Heights campus connecting many of its buildings, used by the university as conduits for steam, electricity, telecommunications, and other infrastructure. Throughout their history, the tunnels have also been used for other purposes, mostly centering around transportation. During the first half of the 20th century, they were used by students to avoid aboveground traffic. When the university housed the Manhattan Project, they were allegedly used to move radioactive material between buildings. During the Columbia University protests of 1968, students used the tunnels to facilitate their occupation of buildings on campus. Throughout their history, the tunnels have been thoroughly explored by generations of students, and have been the subject of numerous campus legends. Though sections have been cordoned off by the university since the 1960s, either in response to the 1968 protests or rampant campus typewriter theft, many parts can still be legally accessed. Similar tunnels also exist under the affiliated Barnard College.

The Avery Architectural and Fine Arts Library is a library located in Avery Hall on the Morningside Heights campus of Columbia University in the New York City. It is the largest architecture library in the world. Serving Columbia's Graduate School of Architecture, Planning and Preservation and the Department of Art History and Archaeology, Avery Library collects books and periodicals in architecture, historic preservation, art history, painting, sculpting, graphic arts, decorative arts, city planning, real estate, and archaeology, as well as archival materials primarily documenting 19th- and 20th-century American architects and architecture. The architectural, fine arts, Ware, and archival collections are non-circulating. The Avery-LC Collection, primarily newer print books, does circulate.

The Trustees of Columbia University in the City of New York is the governing board of Columbia University in New York City. Founded in 1754, it is also referred to as the Columbia Corporation, as distinguished from affiliates of the University that are separate legal entities, such as Barnard College. The board of trustees was originally composed of ex officio members including officials from the New York colonial government, crown officials, and various protestant ministers from the city. Following the college's resuscitation following the American Revolutionary War, it was placed under the control of the Board of Regents of the University of the State of New York, and the university would finally come under the control of a private board of trustees in 1787. The board is notable for having administered the Pulitzer Prize from the prize's establishment until 1975. It consists of 24 members and as of 2021 is co-chaired by Lisa Carnoy and Jonathan Lavine.

The Low Memorial Library (nicknamed Low) is a building at the center of Columbia University's Morningside Heights campus in Manhattan, New York City, United States. The building, located near 116th Street between Broadway and Amsterdam Avenue, was designed by Charles Follen McKim of the firm McKim, Mead & White. The building was constructed between 1895 and 1897 as the university's central library, although it has contained the university's central administrative offices since 1934. Columbia University president Seth Low funded the building with $1 million (equivalent to $33 million in 2021) and named the edifice in memory of his father, Abiel Abbot Low. Low's facade and interior are New York City designated landmarks, and the building is also designated as a National Historic Landmark. Low is arranged in the shape of a Greek cross. Three sets of stairs on the library's south side lead to a colonnade with a frieze describing its founding. The steps contain Daniel Chester French's sculpture Alma Mater, a university symbol. The library is four stories tall, excluding a ground-level basement. The building's raised first floor has an entrance vestibule, as well as an ambulatory around an octagonal rotunda, which leads to offices on the outer walls. The rotunda contains a sky-blue plaster dome and four Vermont granite columns on each of its four sides. The library's stacks could store one-and-a-half million volumes; the east wing hosted the Avery Architectural Library and the north wing hosted Columbia's law library. The library was built as part of Columbia University's Morningside Heights campus, which was developed in the 1890s according to a master plan by McKim. When Low Library was completed, it was poorly suited for library use, becoming overcrowded from the early 20th century. Low's central location, however, made it a focal point of the university's campus. Following the completion of the much larger Butler Library in 1934, the Low Memorial Library was converted to administrative offices.

Earl Hall is a building on the campus of Columbia University. Built in 1900–1902 and designed by McKim, Mead & White, the building serves as a center for student religious life. It was listed on the National Register of Historic Places in 2018 for its historic role in serving as a venue for meetings and dances of the Columbia Student Homophile League, the oldest LGBTQ student organization in the United States.

Buell Hall is an academic building on the Morningside Heights campus of Columbia University in New York City. Built in 1885 as Macy Villa, it is the oldest building on Columbia's campus, and the last remaining building at Columbia which dates back to the Bloomingdale Insane Asylum, on whose grounds the university is now located. It now houses La Maison Française, the oldest French cultural center on an American university campus, as well as the Temple Hoyne Buell Center for the Study of American Architecture of the Columbia Graduate School of Architecture, Planning and Preservation.

Postcrypt Coffeehouse is an all-acoustic music venue in the basement of St. Paul's Chapel at Columbia University in New York City, run completely by students. Founded in 1964, Postcrypt has hosted many up-and-coming folk musicians, including Jeff Buckley, Dar Williams, Shawn Colvin, David Bromberg, and Ani DiFranco. Additionally, Suzanne Vega, a graduate of Barnard College, returns to Postcrypt each Spring to play one secret concert. The young folk singer Anthony da Costa performs there regularly, and Mary Lee Kortes, of the band Mary Lee's Corvette, has played there along with her husband, the guitarist and producer Eric Ambel. Postcrypt is one of the few free, all volunteer-run venues in New York. Its size is also notable: according to the fire code, it can legally only host 35 people at a time, giving the venue a very intimate feel, and making it possible to have music without any sort of amplification. The AIA Guide to New York City describes the Postcrypt Coffeehouse as "the most haunting performance space in the City", and "a great place to find yourself during a blackout".

Schermerhorn Hall (Dutch pronunciation: [ˈsxɛrmərˌɦɔrn]) is an academic building on the Morningside Heights campus of Columbia University located at 1180 Amsterdam Avenue, New York City, United States. Schermerhorn was built in 1897 with a $300,000 gift from alumnus and trustee William Colford Schermerhorn. It was designed by McKim, Mead & White, and was originally intended to house the "natural sciences". During the early 20th century, it was used for studying botany, geology, physics, mechanics, and astronomy. The inscription above the doorway reads, "For the advancement of natural science. Speak to the earth and it shall teach thee."The famous Fly Room of evolutionary biologist Thomas Hunt Morgan was located in room 613, where Morgan studied the genetic characteristics of the fruit fly Drosophila melanogaster. His work in Schermerhorn would lead to his discovery of the role of genes in genetic inheritance, which earned him the 1933 Nobel Prize in Physiology or Medicine. During the Manhattan Project, Schermerhorn was used "for early 'pile' research and gaseous diffusion research and development and operation of a barrier production pilot plant."

Alma Mater is a bronze sculpture by Daniel Chester French which is located on the steps of the Low Memorial Library on the campus of Columbia University, in the Morningside Heights neighborhood of Manhattan, New York City. French designed the statue in 1901, and it was installed in September 1903. It is a personification of the alma mater, which represents Columbia in its role as an educational institution; since its installation, the statue has become closely associated with the image of the university.

Havemeyer Hall is a historic academic building located in Columbia University in New York City.

Francis S. Levien Gymnasium is a 2,500-seat arena at Columbia University in Morningside Heights, Manhattan, New York City. Named for New York lawyer-industrialist Francis S. Levien (1905–95), it is home to the Columbia Men's and Women's Basketball teams and the Women's Volleyball team. It is also used for gym classes in between games. Part of the Marcellus Hartley Dodge Physical Fitness Center, Levien Gym opened in 1974 as a replacement for the old University Gym, which is still used for intramural sports.

The Great God Pan (cast 1898–1899) is a bronze sculpture by American sculptor George Grey Barnard. Since 1907, it has been a fixture of the Columbia University campus in Manhattan, New York City.