Hitler's moment of greatest triumph, July 6, 1940. France has surrendered and Hitler has achieved in less than two months what Germany could not accomplish in the 4 years of WW1. In this photo he is basking in the total adoration of an entire nation. Had he stopped there, he would have been considered one of Germany's greatest leaders. But as Ian Kershaw observed, he couldn't stop there. Hitler was a gambler and he would continue making bigger and bigger bets until he lost.
Here is Harry Truman passing the same spot in May 1945. Truman is in the dark suit, Byrnes and Leahy are riding with him. There's a big version at the Truman library here. The gaggle suggests they stopped here for the photo.