http://agathe.gr/guide/panathenaic_way.html
Panathenaic Way Numerous roads led in and out of the Agora square. By far the most important, however, was the broad street known as the Dromos or Panathenaic Way, the principal thoroughfare of the city ... It led from the main city gate, the Dipylon, up to the Acropolis, a distance of just over a kilometer, and served as the processional way for the great parade that was a highlight of the Panathenaic festival. ... Basins in the line of the channel caught sediment and helped keep the channel clean; those off to the side presumably provided water for draft animals. ... Sculpted base for a monument celebrating a victory in the apobates at the Panathenaic Games, 4th century B.C.
