This is the Kidron Valley as I faced the Golden Gate (right of center along the wall) with the Mt. of Olives behind me.  In 2000 the ground near the Golden Gate collapsed revealing a gate below the modern one.  The hole was filled as this area is a Moslem graveyard.  The southwestern portion of this wall was close to first century Herodian (Second Temple era) foundations of the outer wall of Jerusalem.  Jesus may have exited a gate facing east towards the spot the photo was taken from.