There are photographs which have changed world history. There are also this kind of photographs, which have changed only our private life. What is so significant in each of them? Why they are so important? What is so special in these pictures, what is so touching?

In world history are some photographs, which have had an influence on people thoughts, life, history. Just to mention some of them, like: American marines with a flag on one of Pacific's island (Joe Rosenthal, 1945), killed Che Guevara (Freddy Alberto, 1967), Charlie Cole's photo from 1989, Eddie Adams' photo from 1968, or Nick Ut from 1972, and many more.

Which photograph might be included to the "100 most significant photographs in the world", and why? What is so special in it? Art? Information? Issue? History behind it?