The Royal Stoa
  The Royal Stoa was built in the style of a basilica.  This huge structure is  located on the southern end of the great platform of Temple Mount.
  "One row consisted of pilasters built into the southern wall. A second row, 40 monoliths topped by Corinthian capitals, created an aisle adjacent to the nave. 
  A third row divided the nave from an aisle on the other side. The fourth, northernmost row formed an open colonnade, not a wall as on the southern side. Through this open row of columns one could proceed into the Temple court." 1
 
Bibliography and Footnote
"Reconstructing Herod's Temple Mount in Jerusalem,"  Kathleen and Leen Ritmeyer