Within the archaeological site of Ancient Agora, you will find the very famous Stoa of Attalos. It was constructed around 150 BC and it was a donation to Athens by king Attalos II of Pergamon, whose name carries.

The building of the arcade had two floors and a length of 116 meters, while it was surrounded by Ionic and Doric columns. The Arcade housed over 40 shops and was something like a mall at the time.

The Stoa of Attalos was destroyed by the Heruli in 267 AD and restored in its present form in 1956. Today the Stoa of Attalos is a museum, housing the findings from the excavations in the Ancient Agora.