Iconic Photos (or IP for people in the know) is a photography time capsule and as its name indicates, goes back to Iconic photos, which had a place in history. It is important I mention not all the pictures the blog visits or re-visits are blockbusters such as the one in the below screen capture.
With over 300 posts, you can only learn and get your curiosity bump going. On top of that, some photographers maintain email contact with the blog owner, and provide insights only them can share.
Enjoy.