The excavations on the site were begun at the end of the last century and continued with intervals until 1930. They were firstly conducted by the German Archaeological Institute at Athens and afterwards by the French Archaeological School at Athens. At that time, the temple of Alea Athena and remains of an Early Christian Basilica were uncovered. The excavation that started again in 1990, at the area of the temple and its surrounding buildings are conducted by the Norwegian Archaeological Institute and the 5th Ephorate of Prehistoric and Classical Antiquities.