Photo of one of the wider parts of the tunnel. The left hand side is made for walking, the right hand side is a hole in the ground, connecting down to the water channel. It is covered in protective grating because having tourists fall in would be hilarious only once or maybe twice.

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1. rixx (rixx@chaos.social)'s status on Saturday, 11-Nov-2023 19:32:54 JST rixx

   The Tunnel of Eupalinos was built in the 6th century BCE in Greece. It's just over 1km long, goes through a mountain, and was built from both sides.

   And! It was built as an aqueduct, so it has two parts; a footpath and a lower water channel. It was in use for a thousand years before the channel silted over.

   AND! It still exists and can be visited and we mostly know about it and rediscovered it due to Herodotus mentioning it. How cool is this?? https://en.wikipedia.org/wiki/Tunnel_of_Eupalinos

   #til #civilengineering