Porticoes were covered column-lined galleries opening onto a bare space. Porticoes could be an annex to a building or an independant construction alongside a public square or a street. The portico of Eumenes (Stoa of Eumenes) on this picture, linked the theatre of Dionysos to the Odeon of Herodes Atticus (17). This portico was enormous when compared to the other ones.

A far view lets realize how gigantic this construction was. In the centre of the portico and of the esplanade stood a huge statue (17a) which is thought to be that of the donator.

At the end of the portico you discover the Monument of Nicias which was a building with the shape of a small doric temple (18). One also says “choregraphic monument” to mean “choirs”.