This ancient aqueduct, constructed in the 6th century B.C. by the architect Eupalinos from Megara, is one of the largest, if not the largest technical work of the ancient years. The aqueduct that brought water to the city started with an 860 meters long clay pipe and then entered into the mountain in a 1.036 meters long cable. It is estimated that the construction of the tunnel lasted around 8 to 10 years. It is a great achievement of the ancient technique, if you consider the few means that people had at their disposal to construct such a great work. A very interesting fact is that the proceedings of the drilling began simultaneously by two teams of carvers from the north and the south side of the mountain and met in the center of the path with very little deviation. The work served as an aqueduct for 1.000 years. The trench was used again as a shelter in the 7^th AD century with the incursions of the Saracens. Many personal objects, belonging to the inhabitants hiding there during the incursions were found there.
Opening hours: Summer, 08:00-15:00. Closed on Mondays