The United Nations: Now and Then

Slide 1 of 10,

A mural by the Swedish artist Bo Beskow ornaments one side of the penthouse reception room, no longer in use, atop the Dag Hammarskjold Library at the United Nations.

Piotr Redlinski for The New York Times

The United Nations: Now and Then

The set of buildings in Manhattan has undergone a $2.15 billion renovation, known as the capital master plan. Here, recent and archival images are paired.