http://agathe.gr/overview/the_site_before_excavation.html
The Site before Excavation The Agora lies on sloping ground northwest of the Acropolis, below and east of the extraordinarily well-preserved Doric temple of Hephaistos, popularly known as the “Theseion” ... The Site before Excavation The Agora lies on sloping ground northwest of the Acropolis, below and east of the extraordinarily well-preserved Doric temple of Hephaistos, popularly known as the “Theseion” (a). ... Once again the neighborhood was totally rebuilt, and only limited archaeological excavation was possible. ... The challenges of excavation were considerable.