Low Memorial Library
The Low Memorial Library is the administrative center of Columbia University. Built in 1895 by University President Seth Low in memory of his father, Abiel Abbot Low, and financed with $1 million of Low's own money due to the recalcitrance of university alumni, it is the focal point and most prominent building on the university's Morningside Heights campus. The steps leading to the library's columned facade are a popular meeting place for Columbia students, as well as home to Daniel Chester French's sculpture, Alma Mater , a university symbol. Low Library was officially named a New York City landmark in 1967, then a National Historic Landmark 20 years later. It is capped by the largest freestanding granite dome in the United States.

Low Library was designed by the architectural firm of McKim, Mead, and White, which was responsible for the design of much of Columbia's Morningside Heights campus. The library was designed in the neo-classical style, incorporating many of the elements of Rome's Pantheon. The building is in the shape of a Greek Cross and features windows modelled on those of the Baths of Diocletian. The columns on the library's front facade are in the Ionic order, suited to institutions of arts and letters. An inscription on the building's attic describes the history of the university. It reads: King's College Founded in the Province of New York By Royal Charter in the Reign of George II Perpetuated as Columbia College by the People of the State of New York When they became Free and Independent - Maintained and Cherished from Generation to Generation For the Advancement of the Public Good and the Glory of Almighty God The interior abounds with classical references. At the entryway are bronze busts of Zeus and Apollo. The foyer contains a white marble bust of Pallas Athena, modeled after the Minerve du Collier at the Louvre and donated by Jonathan Ackerman Coles of the Columbia College Class of 1864, an alumnus of Columbia's Philolexian Society. She is surrounded there by the twelve signs of the zodiac. The 106-foot-tall (32 m) rotunda, formerly the library reading room when the building was used for its original function, is lined with columns of solid green Connemara marble from Ireland, topped with gold capitals. Roman and Greek philosophers Demosthenes, Euripides, Sophocles, and Augustus Caesar stare down from the rotunda's heights as the four points of knowledge, Law, Philosophy, Medicine, and Theology mark the four points of the Greek Cross. The rest of the interior is finished with Italian and Istrian marble. A late-19th century real estate magazine, believing Low to be patterned after a French church by "the architect Rumpf", criticised the design, writing that "there is scarcely any original designing done in this city, except the vagaries of the incompetent. The rest is mostly a copybook reproduction of classical and other detail. Successful architects have too much to do to be pre-eminently artists -- they must be first-rate men of business."

The first building on Columbia's new Morningside campus when it was built in 1895, rising out of cropfields, Low originally served as the university's main library, a role which ended when it was supplanted by the larger Butler Library in 1934. After a period in which it still housed the university's archives, the building now consists almost solely of administrative offices. Confusingly, however, the building's facade is still etched with the words "The Library of Columbia University," leading many to mistakenly believe that it retains its earlier role. During the 1968 Columbia protests, Low was occupied by students objecting to, among other things, the proposed construction of a university-owned gymnasium in Morningside Park as well as Columbia's involvement with the Vietnam War. Within Low, the students barricaded themselves inside the office of University President Grayson L. Kirk, where they sifted for documents. Dramatic scenes ensued, including attempts to catapult food to the protesters and efforts by their adversaries to cordon them off. The access of Columbia media outlets such as WKCR and the Columbia Daily Spectator that allowed them to break stories relating to the events in Low prior to national news organizations remains a mystery; many believe students had access to secret tunnels. The protesters were only removed after a controversially violent assault on the building by the New York Police Department. In 1954, during the University's bicentennial, Low Library was commemorated on a postage stamp. For the University's semiquencentennial in 2004, it was placed on a stamped postal card. .