If you come by here between 9am - 3:45pm (Sun - Thr) ; 9am - 1:30pm (Fri) I recommend visiting the nearby "Martef HaShoa" Holocaust Memorial. It's about a 3 minute walk, and it's free (operates on donations). See waypoint and photos.
The Zion Gate (Hebrew: Sha'ar Tzion, Arabic: Bab Al-Nabi Da'oud) is a gate in the walls of the Old City of Jerusalem. The gate is built in a tilted way with a very sharp angle for the purpose of stopping any enemy attack on it (just like Damascus Gate and Jaffa Gate). It was built for Suleiman the Magnificent in 1540 (947 according to Islam dates). A stone plate in the gate praises the builder, Sultan Suleiman Iben Salim. The gate was opened only during daytime, and was protected by guards. Due to its proximity to the Jewish quarter, the keys to the gate were also trusted to a Jewish member of the community. Located in the south of the Old City, facing Mount Zion and Hebron, the Zion Gate leads into the Armenian and Jewish Quarters. Zion Gate is also known as David's Gate (Arabic: Bab el-Daoud?; Hebrew: Sha'ar David), because the tomb of King David is believed to be on Mt. Zion. The magnificent walls of Jerusalem's Old City were built by the Ottoman Empire under the direct supervision of Sultan Suleiman in 1542. The walls stretch for approximately 4.5 kilometres (2.8 miles) and rise to a height of 5–15 metres (16–49 feet), with a thickness of 3 metres (10 feet). Altogether, the Old City walls contain 43 surveillance towers and 12 gates, eight of which are presently open.