Cistern of Eupalinos

The Cistern of Eupalinos is an ancient underground water reservoir built by the Greeks on the island of Samos around the 6th century BCE. It was designed to store water collected from the nearby river, ensuring a reliable supply during dry seasons or sieges. The cistern features an impressive network of tunnels, chambers, and channels that protected the water source from contamination and evaporation. Its construction demonstrates advanced engineering for its time, enabling the city to maintain water security and resilience underwater infrastructure that influenced future water management systems.