Photos & Video: Tunnel of Eupalinos

The Eupalinos Tunnel is considered as one of the most important engineering achievements of antiquity. It's a 1036m long tunnel in Samos Island, Greece, built in the 6th century BC to serve as an aqueduct and therefore supply fresh water from Agiades spring the city of Samos (Pythagoreion).

The Eupalinos Tunnel is an engineering feat of outstanding importance since it was the first time in the history of mankind that anyone had ventured to undertake a project of that magnitude with no similar reference. The Engineer Eupalinos built a tunnel under a mountain by starting to dig, simultaneously, from two portals diametrically opposite. All applied measurements using maths and geometry are of outstanding precision. Moreover, all evidence indicate that Eupalinos was ready to apply a solution for every difficulty that arose, due to unfavorable ground conditions that were partly encountered, as well as that he had the courage to bring his highly difficult project to a successful end. Eupalinos worked as a modern engineer 2500 year ago.

The Eupalinos Tunnel was used for over 1100 years (up to the 7th century AD) until it was abandoned in the Byzantine period, during which it was used for long periods by the Samians as a refuge. The tunnel offered unique protection for the people against pirate invasions. Fortressing walls were built inside the tunnel just after its south entrance portal.

In 1992 UNESCO declared the area of Eupalinos Aqueduct a World Cultural Heritage site.

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Visit the Tunnel of Efpalinos: It is open every day from 8.30 to 14.40, except Monday. You can choose three different itineraries. The first one is the part that you could cross before the restoration, 180m. The second one is about 500m and the third one is 1036m. Booking and more informations +30 22730 62813.

Tunnel of Eupalinos on the map