Lower aqueduct and cisterns

The Temple Mount is pierced with over 30 cisterns of quite different size,
as depicted by Wilson in the 2nd half of the 19th century. Number 8 is
the famous "Great Sea". The Lower aqueduct enters the Temple Mount by
means of Wilson's Arch (50 m south of Warren's Gate), heading for the
cisterns 6 and 36 (which also may be have been ritual baths). Note that
the vertically placed word Aqueduct parallel to the Western Wall is
referring to the ancient 600 meter long drainage channel which was recently
opened in full length for the public. It follows the Tyropoean valley
heading south.