The last photograph of President Lincoln while alive, taken in 1865 by Alexander Gardner.
The actress in a 1953 photo by Bud Fraker.
The famous physicist at Princeton in 1953.
Yousuf Karsh's 1957 photo of the writer.
Toni Frissell's submerged subject in Florida.
This colorized shot of the Marxist revolutionary leader shows him in a lighter moment.