Robinson's Arch

Along the southwest corner of the Temple Mount, a shelf of dressed stone still juts from the retaining wall, some metres above ground. It carries nothing now. For a century and a half it was assumed to be the springing of a bridge that once crossed to the upper city. It is in fact the first stone of a staircase, an enormous one, that rose from street level up the outside of the wall and turned onto the Temple Mount itself. The rest of the staircase is gone. What survives is the wall it sprang from, the pier that once supported it, and, on the pavement far below, the very stones of its collapse.

The projecting stone is named for the American biblical scholar Edward Robinson, who identified it in 1838 during his survey of Jerusalem's antiquities and recognised that it did not belong to the wall's original masonry but to something that had once extended outward from it. What Robinson could not see, buried under centuries of debris, was the rest of the structure: the massive pier that stood in the street to receive the staircase's far end, and the row of vaulted shops built into the base of the wall beneath it. Excavation in the twentieth century, beginning with the Temple Mount excavations directed by the Israeli archaeologist Benjamin Mazar from 1968, uncovered all of it - and with it, the moment the staircase stopped being used.

What the stones show

Herod the Great's rebuilding of the Temple enclosure, begun in the late first century BCE, gave Jerusalem a platform far larger than anything that had stood there before, ringed by massive retaining walls of finely dressed ashlar. Robinson's Arch was one of at least two grand approaches built into the southwest corner of that platform, allowing worshippers and visitors to climb from the lower city's main street directly onto the Mount without passing through the crowded gates at ground level. The arch itself, springing from the wall and landing on a freestanding pier out in the street, carried a staircase that doubled back on a second flight before reaching the top - a piece of engineering meant to be seen as well as used, visible from much of the city below.

Beneath the staircase and built into the thickness of the wall's base, excavators found a row of shops - small vaulted chambers opening onto the street, evidently used for trade in the last years before the Temple's destruction. The street itself, paved in large stone slabs, ran along the base of the wall and showed clear signs of having been finished only shortly before it went out of use. Coins recovered from beneath its paving stones date the street's construction to the years immediately before the Jewish revolt against Rome, meaning the grand approach was barely finished when the war that would destroy it began.

Why it matters as evidence

Robinson's Arch corroborates the layout of the Herodian Temple Mount described by the first-century historian Josephus, who wrote of grand stairways and gates on the Mount's western and southern sides. It matters because the stones supply what the text alone cannot: dimensions, construction sequence and a datable destruction. The fallen ashlars on the excavated street are not a record of the war written by the winners or the losers - they are the physical residue of a single afternoon or day when a wall came down, lying exactly where they landed. Few sites in Jerusalem put a visitor this close to that specific moment.

The shops beneath the staircase add an ordinary layer to a monumental one. Whoever kept them was selling something to the crowds climbing to the Temple, in the last calm years before the revolt reached the city. That the street was so newly finished when it was destroyed is a detail the stones alone provide - a reminder that the world ended for some people just as they had finished building it.