At the southwest corner of the United Nations grounds, linked to the Secretariat Building, is the Dag Hammarskjöld Library dedicated on 16 November 1961 in honour of the late Secretary- General. The building was erected to meet the Organization's growing demands for library services and its construction was made possible by a gift of $6.6 million from the Ford Foundation. It was designed by the firm of Harrison, Abramovitz and Harris, architectural consultants to the United Nations.

The Woodrow Wilson Reading Room is on the second floor of the Dag Hammarskjöld Library at UN Headquarters. The Idaho white pine ceiling is an unusual feature curving from a height of 22 feet at the windows to a height of 12 feet at the opposite wall. The glass north wall overlooks the secretariat entrance with a view of the UN Members states’ flags.