This extention encompasses Mount Zion just outside the city walls near the Zion Gate. This is one of two ajacent mountains, the other being the Olive Mountain, both of great religious importance and outside current WHS boundaries. The Olive Mountain is of much higher cultural significance and of great archaeological value, unlike Mount Zion. However, Mount Zion is within the currently recognized borders of Israel and the Olive Mountain is not.

Mount Zion features a few significant sites, the most important of which is the Room of the Last Supper and King David´s Tomb both in the same complex. There several historical cemeteries on the slopes of the mountain.