Contact: Magnum Photos

Thomas Hoepker shows his contact sheets and dozens of previously unknown recordings of Muhammad Ali.

British photographer David Hurn has a legendary photo session with The Beatles.

A look at the photo of Stuart Franklin facing Chinese tanks in Tiananmen Square.

The picture taken by Peter in 1981 became the most representative picture of the Iron Lady.

Throughout history, Abbas Altar has documented the political and social life of societies in conflict and covered multiple wars.

A look into the harrowing 9/11 attack pictures taken by American photo journalist Steve McCurry.