The background picture behind the map is of the "Western Wall" or "Wailing Wall" and it was historically the retaining wall for the 'Second Temple' plaza built during king Herod's time. The map below from the "Temple Institute" in Israel has not been modified; except for the dark arrow on the left side, and is an accurate representation of the Temple Compound in Jesus' day. Looking on the left side of the map; you will find that this arrow points to a building clearly marked 'Hall of the Freemasons' which on the background picture would have been somewhere in the vicinity of the yellow arrow.
