This is my current desktop wallpaper
It's a photo of Abraham Lincoln's 2nd Inauguration, and shows him delivering his greatest speech. The "With malice toward none, with charity for all, with firmness in the right as God gives us to see the right" speech is one of man's greatest moments of oratory; the photo is the only one of Lincoln speaking; and it was taken barely weeks before he was assassinated. But it's also one of the spookiest photographs ever taken. For not only does it show Father Abe, standing behind the solitary white table, spectacles on his nose and the text of the speech in his hand, it also shows his would-be-assassin.
John Wilkes Booth can be seen standing near the top of the Observation deck above the President. I doubt if anyone who hasn't seen a photograph of him will recognize him, but a straight line drawn from the central pillar-thingy on the Observation deck grille finds him. I didn't take much time finding him though. You never forget a face you've seen in a nightmare ....
Here's a final photo to close down this ramble....