The traditional location of the Last Supper—the Crusader era “Upper Room,” known also as the Cenacle—has one thing going for it: height. The only location-specific information we can pull from the various Last Supper accounts is that Jesus and his apostles secured a large furnished space, the upper room of an unnamed (and presumably wealthy) householder in Jerusalem (Mark 14:12-16). The Cenacle stands tall indeed, nesting above David’s tomb on the heights of Mount Zion. But who knew that Mount Zion’s Christian claim to fame has a competitor—in a basement? The Monastery of St. Mark is the central church […]