Hezekiah's Tunnel

A 1750-foot (530m) tunnel carved during the reign of Hezekiah to bring water from one side of the city to the other, Hezekiah's Tunnel together with the 6th c. tunnel of Euphalios in Greece are considered the greatest works of water engineering technology in the pre-Classical period. Had it followed a straight line, the length would have been 1070 ft (335m) or 40% shorter.[Bible Places]

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