Hezekiah's Tunnel, Underground water tunnel in Jerusalem, Israel.
The 533-meter tunnel connects the Gihon Spring to the Pool of Siloam through a winding path carved into solid limestone bedrock.
During the 8th century BCE, King Hezekiah commissioned this water tunnel to protect Jerusalem's water supply from potential Assyrian invaders.
The Siloam inscription found in the tunnel documents how two teams of workers carved from opposite ends and met in the middle.
Visitors can wade through knee-deep water in the narrow tunnel passages, which maintain a constant flow from the Gihon Spring.
The tunnel's engineering demonstrates a gradient of only 0.06 percent, allowing water to flow consistently across its entire length.
Location: Jerusalem
GPS coordinates: 31.77236,35.23567
Latest update: May 26, 2025 21:20
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