From Israel Archaeology:
The Herodian version of the model shows visitors how excavators believe the Temple Mount site appeared prior to its destruction by Roman troops in the year 70 CE. The focus is on the southern portion of the enclosure, and includes reconstructions of Robinson's Arch (an early overpass linking the top of the platform with the major city street below), the Hulda Street gates and passages onto the platform, the Royal Stoa, and the Second Temple. The reconstruction is based on the excavations at the Temple Mount under the direction of Ronny Reich and regional archeologist Gideon Avni. On view at the Davidson Center.